hey guys im driving wira aero 4G92 engine (1.6)
whenever i stopped, my engine will shake 3-4 times, why would this occured? is it because of the gear box lowering it's gear? whenever i put it in N mode or turn off the air-cond, it wont shake at all. seriously need help here

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Added on November 28, 2012, 1:05 amyeah i did my overhaul a couple of months back, it really consume lesser petrol.

This post has been edited by jericholuke: Nov 28 2012, 01:05 AM

What was your rpm when you turn on the aircond?
Suspected faulty ISC, rpm too low when in gear hence vibration

RPM was in the middle of 0 - 1. my normal rpm without air-cond is slightly below 1.
btw what is isc? is it because of lack of power supply?

i got the workshop manual..pls pm me ur email,i will email to you....

That is what I expected. The ISC gears are gone, you need to get a replacement

But before you do that, do clean your throttle body first, a dirty throttle body can cause idling issues as well

ISC gears means?? sorry for asking a noob question.

Its a very common problem with mmc totobodi, ISC (Idle Speed Control), it'll auto adjust to prevent the car from stalling or dying whenever the a/c kicks in or cold start if nt mistaken.... vry famous problem that most mmc owners cant avoid...

Btw how much will a ISC gears cost? yeah cleaned my throttle body but the car will still shake a couple of times when i turned on the a/c but ti went back to normal after that.

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Added on December 14, 2012, 1:17 pmDoes installing a volt stabiliser and grounding cable helps?

This post has been edited by jericholuke: Dec 14 2012, 01:17 PM

Nop... its small plastic gears inside the TB, usually its melted or cracked into "million" pieces due to the hotness of the TB, there`s a hose connected from the radiator that flows to the TB to cools it down, but so far, nth helps... if don`t wan headache, install FICD lo, then the problem won`t come back d...

Hi... Where the isc located?? And what is mmc???
Hi, I am newbie...
Wira owner with 1.8 4g93
Nice to meet you all... hope to get more about information here ，he he

wira got 2 type throttle body 1 is mmc and another is vdo.... mmc is mitsubishi while vdo is proton.... wira tat produce b4 2000 all is mmc while after 2000 is vdo....

the ISC gear is located at the side of the throttle body... remove the whole air intake component den u can see there are 2 screw at the side of the throttle body, the gear is inside...

hye guys!! im doing a promotion for full car insulation to reduce heat, noise & vibration kindly check my siggy thank you

Guys, any one know how to remove the driver side wiper motor? mine is making shrieking sound when on wiper. tried to change the wiper arm but the sound is still there

How to identify whether my Wira is mmc or vdo? Well, i'm driving a 1999 wira but I saw "vdo" on my speedometer

Dear all sifus:

I am driving a 1999 Wira sedan 1.5GLi (Auto). I found some ATF leakage on the gearbox cable (as shown by red circle in the image as attached within) but no time to send it for repair until next month. So I don't dare to accelerate too much as ATF may spilled out (perhaps?) and eventually spoil my AT box So what I can do currently is inspect the ATF level after warming up my car for 10 minutes before drive it to check if there is insufficient of ATF.

1) Refer to the image, is it a "kickdown/ throttle cable"?

2) A leakage on it consider a serious problem or not?

3) Is it expensive to fix it?

4) Besides, I'm also facing an issue that I have to warm up my car for 10 minute for proper shifting in every morning or after I leave it for few hours during working hours. When the gear box is hot, it works well and no shifting issue. Is it caused by the leakage on cable or internal problems of AT box?

Hope someone could clear my doubts


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it is for heating up the engine when cold start...theres a vacuum valve controls it...when the engine is heating up..it sucks heat from exhaust manifold to heat the air fuel mixture...when the engine is up to temperature..the auto choke opens...and the vacuum air close the valve to suck cold air from the end of the air box nozzle...thats how its work...

Dear sifu here, i got wira SE 1.6 and currently i'm facing the fuel gauge problem.

First for all the gauge is working fine and it can show the reading of the fuel and the other too.

But, the problem come after i driving. my fuel meter keep stuck at the full label and cant even move to accurate reading.

When i driving, the needle will move to top and not even move down back after i have shut down my engine for several minute then it only return to the correct reading.

I wanna know what's the problem?? wiring? fuel sending unit broke?

Please help~

if urs 1999 model i think it is the las mmc after 2000 is vdo.... veri easy to see, if the front of ur throttle is has a socket means urs is mmc....if infront got a big piece of black plastic means it is vdo.... all wira meter wrote vdo, even mine ....

recently srvced and did some repairs on my wira a/back 1.5 auto(injection, vdo)...due to steering shaking and vibration, changed all for mountings to new one (ori mitsu)...while im satisfied with overall srvc & repairs, i still cant accept that the steering rattling is still there..its obvious when car is in D mode but with brakes applied while waiting at trfc lites and when being stuck at trfc jams...on normal driving, very little to almost zero (still can feel very little vibrations but not rattles)..
fyi...i did top o/haul too (my mech said he cleaned tb & reset the ECU)...so what could it be bros?? is there anytg to do with my steering part, or any item that mite hv effect on the steering, directly or indirectly..?
i dunno if any1 here facing this prob...but for me, its a nuisance whc i cudnt stand..
please help..thx n regards

*note: i dont feel any rattling/vibrations on my dashboard part but underneath d/board yea a little, mite be because loosened clips or screws for the plastic covers.

bro, i recently changed all mountings with ori proton ones. while i saw some that claims ori mitsu, my trusted shop who sells ori proton stuffs said that theyre fake (and theyre selling them too). theyre much cheaper too though bearing made in japan, ori mitsu stickers. after changing all ori proton mountings (240 rm +80 labour) things are much better. the old mountings were so bad never changed for 13 years haha. but still vibration still on steering only (d at traffic lights). at least the dash is not vibrating like crazy now. old car, cant expect it to not vibrate at all. i even put on some grounding and it suppresses the vibration a little.

changed the engine air filter to stainless steel mesh by UTR. more power now but scared that the filter does not filter dust. hmm any comments on that?