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 LYN Proton Saga/Iswara Driver's Thread! V28, Keep on Keeping on!

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cyanboy
post Dec 1 2014, 06:43 PM

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Vroom vroom V28. Car is still on mod for security.
cyanboy
post Dec 28 2014, 08:42 PM

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QUOTE(Albert B @ Dec 17 2014, 03:25 PM)
From your description the cold idle autochoke is too high. As the engine gets hotter, the autochoke slowly goes to hot position and the metal reaches the idle screw.

There are 2 screws on the other side (the autochoke side) which is related to the cold rpm. I have not adjusted these screws before, but you can try with cold engine and see what happens. From what I read, some say adjust no.1, some say adjust no.2.
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Autochoke just adjust screw 2. I just experienced such problem on my siblings car. Clockwise for higher RPM, anticlockwise for lower RPM (Only adjust on cold start/next morning of else your adjustment won't reflect immediately)
cyanboy
post Jan 4 2015, 07:37 PM

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QUOTE(riku2replica @ Jan 1 2015, 12:56 PM)
signal does not work sometime. After some discharge, it works again.
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Try Albert B's troubleshooting. If not then get a new switch column before the worse happens. My steering column switch experience:

Symptoms:
» Click to show Spoiler - click again to hide... «


The switch costs approx <120 for OEM, cheaper version <80 (Wanna get ORI but they say no more, P1 Parts Centre ignored me). Advise to change on stage 3 as you sure know its the switch problem. Changing requires taking out steering.

This post has been edited by cyanboy: Jan 4 2015, 07:38 PM
cyanboy
post Jan 17 2015, 03:59 PM

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Now weather manyak panas, kasi 97 also not so power liao le. My ciplak vacuum meter always say i floor to much on hot weather despite same displacement on pedal compared to end of year. Hot air seemed to affect the car performance a lot.

During my drive: (Vacuum meter installed, accelerate at most 0.2bar unless pickup from stop = 0.1bar)
my normal fc = 11.2-11.8km/l
PLUS highway fc = 14+km/l

When I got the car 3 yrs ago = 12-16km/l (Car still powerful, normally floor to 0.2bar can fly car liao unsure.gif )
cyanboy
post Jan 18 2015, 04:24 PM

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QUOTE(davidke20 @ Jan 17 2015, 05:00 PM)
Eh u use Defi ciplak ar brows.gif


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Apa pasal poison saya. Meter kedai abang la, recently found that need to reset the vacuum meter in hot days coz it'll display -0.1bar without throttle. Reset then back to normal again sad.gif

Time for wallet to slim before new year! rolleyes.gif

Any tips for driving in hot days ka? Miss the power compared to rainy december and night driving lol. Need to air con cucuk CAI liao.
cyanboy
post Mar 3 2015, 05:58 PM

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QUOTE(blabong33 @ Feb 28 2015, 03:04 PM)
Hi to all Saga members,my 5 years old saga below the sunlight explore,finally the dashboard part is crack.Everyone have idea where i can get the spare part?

user posted image

user posted image

Thanks.
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For the instrument cover, should be this one as I had mine changed before. Still in stock Proton Glenmarie 2 years back. You need to get the meter cluster out by putting hand in fuse area and push the meter cluster and the meter cluster cover. 3 clips in total. Will post pic next time if you need it, need to dig. Estimated price and part number from the list that forumer shared should be below:
404 Instrument Cluster Hood PW594438 38.94

And for the dashboard crack, its common issue for LMST version. I had enquired before and 0 stock for Proton Glenmarie. Few part stockist in my area also 0 stock. Think you better get a glue and get it done. Listed price list is 180 or 280 last time I asked the Glenmarie. (no stock still ask price funny me)

QUOTE(afsarudy @ Mar 3 2015, 09:51 AM)
Hi guys....
Its my first time posting here.
Just wanna ask something.

Where to find LMST antenna? The slim-thin-black-metal-rod kindda thing on LMSt roof that one.
Mine is broke liao. So wanna look for replacement. You guys know where to get @ you guys know someone selling it?

Please let me know as I need this quite urgently. Cannot hear radio in car right now. cry.gif
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Proton Glenmarie original around RM30-RM40 can't recall. Mine broke during drying from washing my car. Advise to get outside any brand no need so expensive nia.

Want change absorber belakang before April. Planning with budget max 300. Stock spring+ Performax / Monroe Reflex / GAB SA mana recommend?

EDIT: Added ARB I guess absorber changing process is same? Or need unscrew ARB baru masuk abs then masuk ARB?

This post has been edited by cyanboy: Mar 3 2015, 06:00 PM
cyanboy
post Mar 4 2015, 01:33 AM

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QUOTE(chrisstse @ Mar 3 2015, 09:31 PM)
After 1 month of hu ha, i finally got my car after the accident...
However, I now have a depressing problem.
My wiper is swiping so slow i feel it takes eternity to complete 1 circle.
The supposed fastest stroke is like the second slowest stroke when it was good.
I changed the wiper motor in Dec 2014 so pretty sure should not be the wiper motor problem. Another thing i suspected is the wiring of the car somehow goes haywire.
This is because my radio also go haywire after the accident. It plays songs from USB well, but when i switch on my radio, it acts like it is constantly auto-restarted
Is there any ways i can DIY check it first before sending to the mechanic?

Anyone has totally redone their car wiring before? Want to ask about the price and the time for doing that.
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For radio auto restart issue is most probably the constant 12V leads to the radio has been disconnected, or only connected to ACC position (Those half baked wireman especially for insurance claim). For a radio to work, a constant 12V is needed to provide memory, and ACC to signal the radio to turn on. For now, you'll just need to get the constant 12V lead to working again. The constant 12V lead wire linked to our radio is from the fuse LAMPU BREK, which means that if your brake lamp is dead, your radio does not function, unless you replace the brake light fuse. The constant 12V also has a inline glass fuse, check that too, from experience less probability of it blown.

However if found out fuse for LAMPU BREK is the culprit, replacing the LAMPU BREK fuse won't solve the problem as your current constant 12v lead from your radio is most probably connected to other ACC wire or something. Suggest to check your lampu brek fuse, then get to accessories shop or back to the mechanic to fix it properly.

EDIT: For DIY, check the LAMPU BREK fuse. Take out radio, check inline glass fuse. Then check whether you can get constant 12V on radio connector pins with a multimeter/test light. FYI the 12V constant lead should be connected to green/grey wire.

This post has been edited by cyanboy: Mar 4 2015, 01:38 AM
cyanboy
post Mar 8 2015, 11:16 AM

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QUOTE(Albert B @ Mar 5 2015, 08:48 PM)
From my experience with changing absorber of previous car (also with trailing arms but no ARB), in addition to the jack for removing the wheel, the arm need to be supported by a second jack, or by using bricks or a block of wood. Otherwise the spring will drop off when you remove the absorber. The 1st jack or 2nd jack need to be adjusted to compress the spring to the correct height to fit the absorber mounting bolt holes accurately, especially gas-filled absorber is difficult to compress by hand. So maybe the ARB is not affected in this case. You are having additional ARB to the original factory fitted one? Where is it attached to, does it affect the absorber?

I remember the main problem for DIY is the absorber mounting nut cannot be loosened especially with the rust & dirt, need to use air operated impact wrench.
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My second iswara LMST has just changed absorber. APM biasa mia. Changing steps seemed to be simple as above instructions.

QUOTE(Quazacolt @ Mar 5 2015, 11:44 PM)
um, if you only hunting for extractor, i guess can try powerzone...
everyone singing praises for their extractors haha

jedi_master sifu please comment notworthy.gif

KYB gas/oil both for iswara also thumbup.gif
Sachs for kancil thumbup.gif however cant comment for iswara as never used on iswara lol
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KYB bit expensive? But I guess is KYB standard right?

QUOTE(davidke20 @ Mar 6 2015, 05:41 AM)
All Saga/Iswara/Fiore came with standard anti roll bar attached between the sway arm. Not necessarily to detach stock ARB to change damper/spring. I believe what others mean is whether they need to detach their ULARCACING ARB.
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Yeap ada Ular Cacing Arb kat saya mia Iswara. Tak tau scare workshop broke my welding bracket nia.. Absorber was due long ago tapi takut tax nanti le...
cyanboy
post Mar 8 2015, 04:26 PM

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QUOTE(davidke20 @ Mar 7 2015, 12:01 PM)
The best effect for dashbaord bond is dismantle it, then apply epoxy resin from the INSIDE of the crack. This way you wouldn't have to deal with those bits and lumps on the dashbaord surface after being patched. Once applied, make sure you apply enough support for the dashbaord, incase if the plastic change shape then it spoil all your work. Reason for using epoxy resin is due to the material can stand high heat. If you have the time, after you've applied epoxy to the cracked site, put an extra plastic plate onto of the epoxy as an extra support and glue the surrounding of that piece of patching plastics. That whole area will become a full reinforcement and guaranteed will not crack again.

user posted image

After enough experience with this, consistently applying tyre shine/silicone base polisher, the entire dashboard had turned into POWDER! *My point is, tyre shine is for tyre! Not your bloody dashboard!!!

user posted image
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OOO... I used araldite for the dashboard broken clips. 2 corners of clips broken Liao on both iswara lol. Used araldite but does not hold long, I think hold for 2 years. Guess reinforcement is needed as suggested to stop the problem completely.

QUOTE(davidke20 @ Mar 8 2015, 11:28 AM)
No necessarily to remove the UlarCacing ARB for damper replacement. Regardless, magician will have to double jack 1 side(1 is to jack the sway arm to compress the spring, another is to lift the car up) of the car before removing the damper then finally the spring. Hence, with or without the UlarCacing ARB, the way to do remains the same.

As for your worry, if jacking up the car 1 side would rendered the break of welding bracket...I can't imagine how you went through a 90 degeee sharp turn 60kph corner at Sg.Besi interchange Mahameru yawn.gif Might as well find out it breaks during damper change, rather than it breaks during your attack laugh.gif Still can't brain how they came up with such ingenius idea of so called ARB that required welding to make a braket rclxub.gif Might as well get a steel bar weld it directly on the sway arms yawn.gif

Heh? Quazacolt whistling.gif
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Oh Magician knows how to do the work eh? Sachs Monroe Performa mana suitable with stock spring? no short stroke.
Apa Pasal U tau say konar 60 kat mahameru bend? Mine is Jalan damansara-mahameru bend though, maxed at 60-70 coz I can hear my new tyres slipping sound Liao so no dare increase speed until now. Wait baru Mia absorber bar try lo... whistling.gif
cyanboy
post Mar 18 2015, 01:36 PM

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QUOTE(mjlau95 @ Mar 18 2015, 12:27 PM)
Anyone know how to remove the rear bumper of the iswara aeroback?
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LMST or the normal aeroback?

LMST more complicated i guess. As far as I can recall, open rear boot, remove the middle plastic trim (with a cut out for latch). Proceed to the left and right headlamp trim if needed, can't remember. After removing the trim, shall be able to identify few screw heads, I think is 3 for each side, backed by a solid black metal (Triangle shaped?). Put something on the floor before you unscrew the bolts and drop the bumper. Once dropped the bumper, there's also metal plates securing the whole bumper. You might want to unscrew all as well if you would like to replace the bumper or do something fancy with the bumper. Also if you have reverse sensor, be careful of the wiring and don't over stretch the wiring while dropping the bumper..
cyanboy
post Mar 19 2015, 03:57 PM

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QUOTE(davidke20 @ Mar 19 2015, 06:16 AM)
After all the posting exchange, it is quite confirmed that your butt feel gaves you better placebo, hence lighten your foot and at the same time the car gaves you better mileage
1) A magician that uses timing light, the firing timing has been optimized to the circumstances where the engine health stands
2) A magician that uses ping detector(the hospital heartbeat reader thingy) to read ping can further finalize your ignition timing settings. Usually when procedure 1 is completed, this is the next step to micro decreasing ignition timing to minimize/eliminate ping/knock. Usually they no longer use hand to push anymore(only will do counter clockwise at this point to further retard ignition timing), use a small thing may be test pen to lightly knock on the distributor to get the best setup out of it.
3) A magician that uses CO reader will know how much is the exact carbon monoxide released from your exhaust tail pipe, so he/she can adjust your air flow/idling throttle angle/fuel flow/FICD actuating angle(for aircond), headlights power draw adjustment(oh yes! our Swaga got this feature also!). Adjustment is solely justified base on how much CO emission when the magician go "bem bem" your car, but I bet most magician doesn't do the "bem bem" according to normal driving condition, such as 3krpm! Usually will bem until red line, which is unrealistic. If you go redline often, will you still be worrying on FC? Probably not. If you're an ordinary driver, what is your rev range? Probably 3krpm max
4) A good magician will repeat step no.1 and 2 all over again to reconfirm the 3rd setting does not affect the ignition timing. If ignition timing has to be reset, step 3 may need to redo depending on how far off step 1 is. Usually, an average magician already can gets step 1 right for the 1st time. Hence, there are really no need to repeat the process at all, but for the sake of confirmation, and yes that makes a difference between a good magician and a lousy magician. Usually its not about the skill anymore because the good 1 and bad 1 are almost similarly skillful, but the good 1 will go an extra mile to confirm his setup has been carried up correctly.

AND, for the price of RM20, even he didn't repeat you also should feel grateful ady Nowadays where to find RM20 tuning that involved all the above! notworthy.gif
When was the tuning carried out? Carburetor got cuci or not before the tuning? This is a mechanical carburetor engine, any slight change of condition the setting also will deviate, depending on how bad the condition is. Unlike EFi engines can auto adjust everything according to engine health condition. Even our old 4G1x MPi that can't adjust ignition timing automatically also can adjust fuel injection rate to adapt.

Autochoke can be rosak without affecting much other than cold start idling speed. Definitely not affecting of what RON fuel you use

I really curious, how did you obtain the FC reading from your previous posts where you mentioned 14km/l? Is it the FUELLY way? Or the pay RM50, call it a tank? All my life, other than newer high compression vehicles, the 90's designed engine that has significant fuel economy between RON92 and RON97 was my CRX B16A  The RON97 will really make hell lot of difference! Not to mention the power output, the fuel economy speaks for itself if it was the CRX. However though, the very same era my Potong Night 1.5S very much like to drink the RON92 red color devilish juice laugh.gif I feels like I can chase my own CRX with a ranjiao Plotong car when my mate is in my Hongda  And, when I put RON97 cucumber juice in my Knight, tibai the bugger is like forcing my kids to eat vege lidat doh.gif Go up hill will roll backward geh shakehead.gif
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No magician+hot weather+lala Ron95= Damn lots pinging on slightest load. Vacuum reading can't go lower than 0.25 bar or sure ping. Checked the distributor bolt out already, its covered with damn thick of oil. DIY soon...


QUOTE(zero5177 @ Mar 19 2015, 02:34 PM)
My drive was quite constant and usually how I calculate FC is I reset the meter every each full pump, I've been practicing this calculation for the past 2 years. Total KM Travelled divided by Litre of fuel pumped. I always stop filling when the nozzle auto stop, and I also pump at the same petrol station, same petrol pump as well. Regarding the consistency of the result I can say my driving pattern is pretty steady, gear change usually before 2.5k RPM depending on road condition. I can say I'm pretty light footed. Everytime I calculate my FC for Iswara it will be within 11.3 - 12.3km/l. My alternate Myvi I haven't test it with 97 yet, however it gave me around 15-16km/l reading most of the time with RON95 unless I go full highway then can get around 18km/l

Btw now I'm testing 2nd tank of RON97 let's see how it goes, if it falls back to 12km/l then I'm out of words.  laugh.gif

*Edit: Forgot to thank you for taking so much efforts to respond to my post and explaining those magician's skill  notworthy.gif
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Well I can say FC is around there for stock setup, mine can't go over 12km/L although consider light footed. I do not know other but Ron 97 doesn't improve my FC for me, just much less to no pinging. And it just allow me to pick up at same pace with Ron 95 with less vacuum drop, hence translates to more powerful feel.
cyanboy
post Apr 28 2015, 09:25 PM

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Need comments on below on the pricing wise:

Rear Absorber Monroe Reflex RM7X per piece from spare parts
Installation Rear Absorber RM4X by regular mechanic

Exhaust so called Aisin OEM manufactured by Datco, Part number 02-P714-ARSP RM28X with installation.
https://www.dropbox.com/s/xk8ud6t3mjko7vr/I...181048.jpg?dl=0

Originally thought just want to patch weld some rusted holes on exhaust "tong", but claimed whatever inside the "tong" (fibres?) might already burnt out due to aging. Also claimed by person to be quite noisy but after changed to new realized no difference in noise level. Vacuum meter, however registered slight more back pressure on throttle release, 0.01kpa-0.02kpa LOL?

Another thing is I had my 8 years old distributor cap opened and got the pics as per below. Wondering is it time to replace the cap and rotor already?
https://www.dropbox.com/s/t2t0wb06v4kgzz4/I...0428_154712.jpg
https://www.dropbox.com/s/qn5wizjaguowzrj/I...0428_154748.jpg
https://www.dropbox.com/s/9czp9bbpn8oogbo/I...0428_154826.jpg

Also below are my Bougicord spark plugs cables resistance readings. I believe Bougicord is copper cable right? Hopefully got enlightenment with other values to compare, Bosch or Bougicord or Aro speed no prob!
(Nearest to Distributor, Shortest Length) 5.73k ohms
(Further from Distributor, Medium Length) 8.23k ohms
(Furthest from Distributor, beside timing belt, Longest Length) 10.6k ohms

Quoted resistance values from NGK website:
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Why i'm checking all this? Well I just wanted to ensure everything parts related to distributor/ignition are OK before I start to retard the ignition timing. Just done OCI and with new spark plugs, if all parts looks ok i guess really had to retard it liao...
cyanboy
post May 3 2015, 09:40 PM

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Hmm maybe next time on the cables. Once I got a new cables will definitely reupload here for the resistance to compare.

For the distributor cap: (Just to post it up here that cleaning distributor caps and rotors works)
No misfiring, just wanna check everything with ignition is fine before I retard the distributor. I had cleaned the white powder up bit prior to taking this pic and rotor. But the day after you posted I reopened and sand paper the contacts and rotor. After that 2 days the idling on no air con is somehow messed up, before that there's no such problem.

However after the 2 days idling is suddenly back to normal and now running very smooth even on idle. It's to the extent of the having the same "shakiness" at the lower RPM. Anyways I tuned down my no aircon idling back to the same "shakiness".

If cleaning and sanding does something as far to this extent, probably changing the whole cap and rotor helps much more for aging distributors...
cyanboy
post May 18 2015, 05:39 PM

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QUOTE(Albert B @ May 5 2015, 11:19 AM)
UPDATE

I measured the lengths of my spark plug cables, ignoring the metal end portions, and recalculated and updated the table in the guidelines, attached.

Your cable resistances are very close to Mitsubishi standards.
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I'm getting a new cable probably next month or something on another iswara. The China cables are so bad that when I wanted to remove, I chipped off some of the plug insulation. And the resistance is considerably higher but I can't recall. Would update accordingly on a new Bougicord cable and see whether is it "better" than Mitsu standards lol.

Anyways a new ques here:
Wonder if i had taken out the radiator hose, should I need to apply a gasket before fitting the radiator hose to the radiator? As in pic below, I can't brain out whether there is a gasket between hose and the radiator connection. Unless the gasket layer is also black maybe?

A google search tells me likely not needed or it didn't even exists, youtube videos also does not emphasize that.

But i'm bit concerned cause I recall (maybe many years ago) seeing or hearing people/web saying that gaskets are needed before fitting the hose in. Because just by screwing it tight, I think probably some air still can escape from the hose and probably makes the whole systems loses pressure.

If there is such gaskets wonder what gasket should it be? Copper gaskets?
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cyanboy
post May 18 2015, 11:49 PM

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QUOTE(Quazacolt @ May 18 2015, 05:41 PM)
mine had sealant applied, not actual gaskets.
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QUOTE(Albert B @ May 18 2015, 09:12 PM)
So far in my experience of changing hoses, I have not encountered any sort of gasket. I just tighten the hose clip, and on running the engine to normal temperature, if there is a leak it will show up as stains from the colour of the coolant. Probably you can apply some sealant as Quazacolt mentioned. If air leaks in on cooling down, the overflow tank will show and increase in level of coolant.
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Hmm I guess I need to get this as few webs does suggest "Blue RTV sealant":
http://www.permatex.com/products-2/product...et-maker-detail

Anyways the connections seems leaking (same before removing), will retighten as per other website/forums and see whether overflow tank has increase in tank level. Then will consider to get the sealant if things gone wrong.
cyanboy
post Jun 13 2015, 06:07 PM

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Further tightening solved leaking issues in both of my Iswara's. But still monitoring especially the hose joint to thermostat, seemed to be leaking some amount there judging from the old coolant spots.

Anyone had idea to adjust ignition timing using timing marks? I just got myself a timing light and realized the timing marks are way too difficult to be accessible. Do normal mechanics use timing light for iswara adjustment? Maybe need to remove power steering pump to access the marking plate?

If not final resort will be old school style adjustment without timing light...
cyanboy
post Jun 27 2015, 04:00 PM

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Yeap i managed to do it before you posted. The looking on timing plate method is the same as your view in pic. However the timing light i can't manage to have any space to go in. So I resorted shing it from the engine mounting side. Pic as per below. WARNING to future DIYers: Careful of the timing light aim and wires while you looking on timing marks! As its too near the beltings. Also make sure 850rpm before setting anything!

Also you might need to set your idle timing higher/lower after adjusting your timing, as the idle timing will run out a bit. Personally i set my idle with lights and air con compressor on will maintain minimum 800-850rpm so not so shaky at morning/night driving.

https://goo.gl/photos/4YyQqZv7GLarrA4F9

I retarded my timing a little 4-5 degree, throttle less responsive. Is it different ignition timing sets to different power band as well? From what I read is more to CAM timing changing power band, but I think CAM timing not equal to ignition timing right?

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I always wondered what's that for, but since its bundled so tightly to the wiretape, I didn't touch it yet.

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This is the socket you shall look out for (more yellowish one):
https://goo.gl/photos/h9uu279d1iqrKVgR9

All the wires from steering column switch redirects to this IINM. You can try turn on and off the low beam and see which wires corresponds to. Once you have the pin, do like northernhero, just short the 2 pins with an external wires first to confirm the contact points on the connector is not the problem. If lights still on off, might be steering wiper switch column.

Also the root of the problem may lay with the steering column switch. Last time this problem solved once I changed the steering column switch. Upon taking out the old steering wiper switch you'll notice the contacts are blackened out by high current, which results random on off and finally gone.

Look at my symptoms which is similar to yours. I lost my low beam and finally high beam at midnight.

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EDIT 1: Pic fixed
EDIT 2: I took out my old steering wiper switch column and traced back the wire. The suspect wire is the yellow circle and green circle. Yellow circle should be for low beam and green circle should be for high beam. There's melted/blackened sign for the yellow circle wire. Try bypass that first to see whether it solves low beam problem.
user posted image

Also check your headlight bulb connector to see whether is it in good condition or melted. Slight out of shape is ok but if the plastic looks "bubbly/boiled down", get it replaced.

This post has been edited by cyanboy: Jun 27 2015, 04:37 PM
cyanboy
post Jun 28 2015, 02:01 PM

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No powerbands I see. Retarding does feel a bit less power during pick up. However pinging does not present unless floor to 0 vacuum. I used to floor at 0.25 bar vacuum, any lower than that pings. By retarding I can floor around 0.15 still does not observe ping. But maybe overall fuel consumption might increase due to flooring harder than it used to be? Will update on my next full tank.

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QUOTE(Albert B @ Jun 28 2015, 10:34 AM)
So it is the switch after all. Just curious, did the mechanic do troubleshooting/tracing,
or he straightaway zoomed on the switch?

Regarding prices, depends on whether he used OEM or 3rd party parts, how much time
and effort he spent. Prices of the part vary so much, see below.
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Woah some website still claimed they have the original. For that price i'll top up instead of going through hassle to change. Mine I think started to have the some headlamp "auto-off" symptoms, which i think only original does guarantee in long run. The original old switch works 7+ years in total, 5+ years start to have the first symptoms and lasted 2 years before the contacts got blackened totally and won't work anymore.

I agree with you that if the mechanic is "Diligent" enough, he should have known this problem and bypass those wires before changing the switch. However since now its fixed then just monitor first.

If you'll really like to know whether the switch is at fault, take back the steering wiper switch, open up and you'll see some contacts. If the contacts are blackened (due to high current arcing like power window switch), then switch is the problem. If the contacts are fine, maybe the part you saw melted is the culprit, and the problem will come sooner. But for that bypassing part is mostly just bypass wires not a big deal i'll say.

If really wanna save $$, can also. Take out the switch, use sandpaper on all the contacts you found blackened, fix it back. It'll run for sometime again. This process is normally done in our power window switches by online enthusiasts DIY blogspot. Some websites also suggested dielectric grease to coat after sanding off so it'll last even longer!
cyanboy
post Jul 11 2015, 02:54 PM

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Heys,

Anyone know where is the coolant temperature sensor located? Have an issue of temperature rise during turn on of headlights, LMST 4 bar (Normally 3 bar). Haynes noted its "underside of inlet manifold casing".

Some webpage mentioned add grounding to headlights, and also ensure headlight not sharing same power source/leads with the sensor. If that does not solve suspect instrument cluster.

But I guess i'll have a look at the temperature gauge first and perhaps add more grounding to it before proceed to adding grounding specifically for headlamp.

Also note that prior to this I had retarded timing, which equates to probably higher running temperature as well. Coolant drain off and fins cleaning had been done prior to retarding timing too.

Perhaps the engine might already run slightly overheated already prior to retard timing, retarding makes it overheated. Maybe the situation is: (From my logic and AlbertB mentioned about high working temp of engine after retarding)
Before retarding timing, headlamp off: 3.5 bar (Meter display 3 bars)
Before retarding timing, headlamp on: 3.8 bar due to aged grounding issue (Meter display 3 bars)
After retarding timing, headlamp off: 3.8 bar (Meter display 3 bars)
After retarding timing, headlamp on: 4.1 bar due to aged grounding issue (Meter display 4 bars)
cyanboy
post Jul 23 2015, 06:36 PM

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QUOTE(Azrage @ Jul 23 2015, 12:15 PM)
Cyanboy, do you have any solution? As i'm having the same situation like yours, headlights on the temperature bars rise to 4 bar, turn off goes back to 3 bar.

Thx
*
Currently no solution to it from my side yet.

Forum sources mentioned connectivity between battery and battery ring not good, result in lower voltage and under charge situation. This situation is also true as I just installed a new battery not long ago and the charge doesn't seems to be good, have a voltmeter reading, looks like this new battery cant be fully charged, resulting errors in readings? But I doubt it from testing.

First run the engine with headlamps on a short trip, when see 4 bar a few times. Park at a safe place, leave headlights on, wait it 4 bar, or if already 4 bar, then quickly turn key to ACC, then to ON. You'll see the temp reading is 3 bar again. Test means the undervoltage is irrelevant here as the sensor works through out all battery voltage range, including just 12V. You can also straight start back the car, the temp will also display 3 bar.

Since forum also quoted it might be sensor grounding issue. I also tried to take jump start cable and connect to the grounding wire from engine to firewall, at the engine side grounding nut near the starter. Wait temp till 4 bar, then clamp the engine ground to negative terminal of battery. The fault does not clear immediately. I tried already, with car idling condition and headlamp on, it'll take 1min+ to cool back from 4 bar to 3 bar, regardless of with and without jumper cable aka extra ground direct to battery. So i dismiss the statement of bad grounding too.

Itenary that is related and can further troubleshoot:
Temp sensor resistivity test, values at haynes manual, to check faulty temp sensor (Requires unscrew thermostat)
Additional Groundings from headlight to ground (Not sure if they share the same power cable on lights and temp sensor)
Faulty instrument cluster voltage regulation (forum quoted for foreign cars)

But it should be solved easily by "work around" of the problem. New cooling systems or change either of the components. I believe its the combined issue of slight inefficient radiator, aged fan, or other inefficincy of the cooling system. So maybe the meter interpret around "3.5 bar" already normally, then at night with slight voltage drop, and some other electronic issues, the meter interprets "3.8 bar" which show 4 bar. However, a quick off engine and restart engine will show 3 bars again, which is rather rclxub.gif

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