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> Problem with Proton Gen2, helps

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TSpc-mafia
post Feb 25 2009, 03:41 PM, updated 12y ago

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Im using Proton Gen2 1.6manual year 2005 end
my problem is the rpm of my car keep get high when i change gear especially 1 to 2 to 3
sometimes i dont press the fuel paddle aso the rpm so high until 3 to 4 and sometimes to 5 rpm

it so hard to drive when it jammed
actually this problem is found first i bought the car
but the servis centre say is the spec for gen2
me donno what to do now
if someone have to same problem that has solve it
pls help me
or someone that know this situation


hope for better driving with my gen2 car

neotoxin
post Feb 25 2009, 03:49 PM

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it supposed to be like that for Campro. I still remember the 1st time I drive Campro (it was a Gen-2), I also think something was wrong coz I drive wira daily. BUt if the RPM spike even if you are stationary and did not press the throttle, there could be something wrong. TB's ISC maybe?

This post has been edited by neotoxin: Feb 25 2009, 03:51 PM
Dovienya
post Feb 25 2009, 04:11 PM

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Auto or Manual?

I'm using auto Gen-2 , year 2004 spec.
I cant say much bout manual, but from what I know based on auto gearbox concept:

When I was rev-ing high (above 4k rpm, which is typical if I'm overtaking in highway, or "flying" down a slope ;do remember that gen2's auto has auto-shift down concept) I will get the following scenario:

When I start to slow down or stop (traffic light, toll booths), my RPM will remain high, and it will then slowly drop.

This is because somehow (not familiar with the concept), the engine will "cool itself down" and "refuse" to drop the RPM directly. Maybe it is controlled by ECU or maybe it is the auto gearbox

But it normally happen after a high rev, not while I am stationary or <3k constant RPM .



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TSpc-mafia
post Feb 25 2009, 04:17 PM

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QUOTE(Dovienya @ Feb 25 2009, 04:11 PM)
Auto or Manual?

I'm using auto Gen-2 , year 2004 spec.
I cant say much bout manual, but from what I know based on auto gearbox concept:

When I was rev-ing high (above 4k rpm, which is typical if I'm overtaking in highway, or "flying" down a slope ;do remember that gen2's auto has auto-shift down concept) I will get the following scenario:

When I start to slow down or stop (traffic light, toll booths), my RPM will remain high, and it will then slowly drop.

This is because somehow (not familiar with the concept), the engine will "cool itself down" and "refuse" to drop the RPM directly. Maybe it is controlled by ECU or maybe it is the auto gearbox

But it normally happen after a high rev, not while I am stationary or <3k constant RPM .
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*
thanks for the reply
my car is manual car
it is normal for gen2 manual like that
by the way
wat is TB's ISC ?
dont understand


sometimes when i in slow drive
i change gear without press my fuel paddle
the rpm so high eventhough i dont press the fuel paddle
is it normal like that for gen2 manual car?

hope got a answer for my problem

812799
post Feb 25 2009, 07:27 PM

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high cam bro ... still got warranty ma , bring it back 2 SC lor
TSpc-mafia
post Feb 25 2009, 08:34 PM

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QUOTE(812799 @ Feb 25 2009, 07:27 PM)
high cam bro ... still got warranty ma , bring it back 2 SC lor
*
high cam?
i go to the services
but they say it spec
damn it
must complain caw caw

loong2020
post Feb 25 2009, 09:07 PM

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if its rev abit den no problem...campro characteristic....even my auto campro also sometime i do see abit jump to higher rpm....if the rev is too high den send to SC... cool2.gif
779364
post Feb 25 2009, 09:21 PM

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This is the weirdest problem I read here.Could it be your clutch plate is slipping.Its abnormal if you ask me.

try going on a slope and then accelerate on the gear and then go on neutral,and see if your RPM still climb.If it does,your clutch is slipping.Another problem should be a faulty Throttle body.Replacing one with Proton SC will set you back more than RM700++ ori parts

This post has been edited by 779364: Feb 25 2009, 09:22 PM
TSpc-mafia
post Feb 25 2009, 09:34 PM

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QUOTE(779364 @ Feb 25 2009, 09:21 PM)
This is the weirdest problem I read here.Could it be your clutch plate is slipping.Its abnormal if you ask me.

try going on a slope and then accelerate on the gear and then go on neutral,and see if your RPM still climb.If it does,your clutch is slipping.Another problem should be a faulty Throttle body.Replacing one with Proton SC will set you back more than RM700++ ori parts
*
ya
actually it queit high
donno la
i go 1 mechanic

he say paddle port problem
i services it ok 1 day
but later come back the problem again
last time i see sc they say this is gen2 spec
donno what is spec like that
damn bored with this car

jeffayn
post Mar 19 2009, 07:14 PM

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all this is because of the "smart" ECU used in Gen2 by the proton guys, it actually provide a safety cut so that when u are not pedalling, the car speed goes up , it means you are downhill... so it will down step one gear ...

so for all gen2 driver... try this and u will learn how to cheat the ECU...
when you are going down hill... don let go the pedal all the way.. just slowly release the pedal let the ecu read that you are actually decreasing speed instead....

it work .... believe me ... even for persona too...
Dovienya
post Mar 20 2009, 09:39 AM

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That is downshifting ... and to be exact, cheating downshift ECU calculations

If you read TS's post, it is more toward upshifting (high RPM when driver shift up , 1-to-2, or 2-to-3)

Actually, it could have been caused by ECU ... Campro is an high-rev engine, so I wont be surprise if the ECU rev the engine to maintains the powerband when driver manually shift-up (when there is not enough power during shifting)

Cant help very much as I'm on auto mode . zzz

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TSpc-mafia
post Apr 1 2009, 12:22 PM

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thanks for the info
i aso donno what to do with my gen2 car
need to check for specialist fast
hard to drive when traffic jam

kjyong
post Apr 2 2009, 02:00 AM

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The spec for CAMPRO engine

Idling RPM
- M/T - 950 RPM
- A/T - 1050 RPM
the_catacombs
post Apr 2 2009, 03:51 AM

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bro, u mean when u depress clutch and release throttle during manual shift up, rpm does not drop??... ur rpm stays at what rpm during the period u let go ur throttle??....

so far as i conclude is dat... connection between speed sensor, throttle position and ecu.... could be faulty speed sensor, sending wrong signal to ecu, causing it to blimp up the throttle....

jz a suggestion... coz i wouldnt be normal if the rpm does not drop even ur throttle is off...
Dovienya
post Apr 2 2009, 10:09 AM

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One possible alternative is to send to PSC.

Ask them to plug the reader to ECU, then take a test drive.

If the RPM climbs instead during changing of gear, ECU might be able to show some insights to the fuel-air-mixture, O2 reading etc ..


shazmn
post Apr 7 2009, 10:51 AM

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true enuff like the sc told u its 'the spec for campro' laugh.gif

anyway its not actually the spec, its the drive by wire where ur throttle response is being read electronically...

even u have release the paddle, the throttle will take some short time before the timing goes down to normal...

for early batch of gen2 where u got the old powerful 2004 ecu, this problem is common...sometime the idling will stay at around 1.5k n only goes down after a while...what i normally do when i drove a car with this ecu, i just lift the paddle up n off ur engine leave it a bit n start...if the rpm still shoot up high, u have to do it again...

anyway if u hate that characteristic that much come swap with my ecu...2004 ecu is well known for its powerful mapping where it provides higher sparks...

another way to confirm is go to sc, have them checked ur ecu version n if it is a 2004 batch, ask them to flash the ecu to latest mapping...BUT u'll lose the pickup provided by the old mapping...well u win some lose some right...

XD
pros_di
post Jul 14 2009, 03:07 PM

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QUOTE(shazmn @ Apr 7 2009, 10:51 AM)
true enuff like the sc told u its 'the spec for campro' laugh.gif

anyway its not actually the spec, its the drive by wire where ur throttle response is being read electronically...

even u have release the paddle, the throttle will take some short time before the timing goes down to normal...

for early batch of gen2 where u got the old powerful 2004 ecu, this problem is common...sometime the idling will stay at around 1.5k n only goes down after a while...what i normally do when i drove a car with this ecu, i just lift the paddle up n off ur engine leave it a bit n start...if the rpm still shoot up high, u have to do it again...

anyway if u hate that characteristic that much come swap with my ecu...2004 ecu is well known for its powerful mapping where it provides higher sparks...

another way to confirm is go to sc, have them checked ur ecu version n if it is a 2004 batch, ask them to flash the ecu to latest mapping...BUT u'll lose the pickup provided by the old mapping...well u win some lose some right...

XD
*
bro need help ... just wonder ar ECU brand new how much ar ?? and if better to reformat or better to change to a new one
i have done tons of thing to my gen2 but i can't kick it up to 200 at least when i ram the car the best it will go to 180 then drops back to 170
damn tention... change the crank pulley change the manifold but still no power when i first got the car it had no problems then after 2 year it's start having problems with the speed . do i have to change my ecu or should i try snorkeling or arghhhh running out of ideas hELP ASAP??? rclxub.gif rclxub.gif cry.gif :cry

nkphnx
post Jul 14 2009, 04:02 PM

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Yep, the throttle for the new Campro engine is now drive-by-wire.. It is a known 'phenomema' for the new Gen2/Persona cars which have this throttle blip when you press on the clutch during gear shift.. It's all programmed in the ECU.. Have no idea why they introduce this characteristic in the ECU (a software glitch maybe?) but it sure is annoying for manual driving..
the_catacombs
post Jul 14 2009, 08:55 PM

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QUOTE(nkphnx @ Jul 14 2009, 04:02 PM)
Yep, the throttle for the new Campro engine is now drive-by-wire.. It is a known 'phenomema' for the new Gen2/Persona cars which have this throttle blip when you press on the clutch during gear shift.. It's all programmed in the ECU.. Have no idea why they introduce this characteristic in the ECU (a software glitch maybe?) but it sure is annoying for manual driving..
*
all campro engine is drive-by-wire... including the 1st generation campro...

not sure about the throttle blip though.. how much it increases ur engine revs when u step on the clutch??... safety feature for noob drivers to prevent engine stall??... unsure.gif
TSpc-mafia
post Aug 18 2009, 06:10 PM

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QUOTE(the_catacombs @ Jul 14 2009, 08:55 PM)
all campro engine is drive-by-wire... including the 1st generation campro...

not sure about the throttle blip though.. how much it increases ur engine revs when u step on the clutch??... safety feature for noob drivers to prevent engine stall??... unsure.gif
*
so high... sometimes it ran over 2000-3000rpm
and it stays there a few second before it reduce
how to explane
hard
if someone can help to test drive it sure it help a lot


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