its not ocv in ur case. I hope u already update with latest version of engine adaptation program. Since using dbw@drive by wire, u need to rev a bit more to move since it doesnt transfer 100% throttle input during start to move, due to emmision cntrl,sometimes call throttle lag for dbw.
Try rev between 1.5k-1.8k rpm when start to move from 1st gear. Iinm, u will see the rev drop automatically a bit even if u maintain the pedal at same pressure, but it wont stall the car.I think that shud solve ur probs.

But try to check with sc whether they already update with latest version 1st as arthur inform earlier. Same apply to cfe on the program coz they r some reports earlier on the stalling. ocv only for cfe n being recalled to those affected according certain batch number.

But no harm checking ocv for cfe if encounter the same probs.

Hopefully this help.

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Added on September 10, 2012, 4:35 pmThis post has been edited by mat79: Sep 10 2012, 04:35 PM

Hi All, long time not join u guys.. till i forgot my password.. hehehe.. how's things?...

Thanks for the reply Abg. mat79 I'll check with the Glenmarie SC when I go for my appointment tomorrow. The clutch-bearing noise is getting worse and I think I need to get it resolved urgently as well
By the way, I drive a manual (not CFE) so I guess the OCV issue not relevant to me, right?

About the launching issue, yes, I do occasionally rev about 1.5K - 2K RPM but when I rev once, release the pedal a bit then rev again (to adjust), the RPM drops quite low. As a result, I stall sometimes too Even if you press about the same intensity for both times, the first time high, then the second time low. That coupled with the slow response of the DBW makes judging the power a bit difficult Is this normal Abg. mat79?

Thanks for all the advice anyway Appreciate it A LOT!!!

i notice brader Mat79 is explaining about "sudden die off" issue again.. yeah changing ocv really help me (in my case).. seem to be never happen again (3 month if not mistaken)..

Err... what is OCV? I seem to have confused "OCV" with "OWV"
Update: OCV = Oil Control Valve Found it Thanks...

This post has been edited by GoldenHawk: Sep 10 2012, 05:22 PM

ocv is referring to Oil Control Valve.. its like injector or controller for oil to be pump in/inject in to your engine when u pedal on.. not a master, but talked base own history/experience..

Still have the problem. What bro Artur88 posted was not a solution, just to check version of HU only.

Just when sc ipoh jln lahat to fix my warranty parts. I have ask about the hu update software and engine update, seem they dunno about the hu software update. They just say I already upgrade the software for your car.

What is engine adaptation program btw?

Hi, i having this problem with my car. Every morning when cold start. Like the starter over crank for 1 sec.

That's the famous OWV problem bro. Go have it checked at SC.

While it is advisable to have it checked at SC, no need to change OWV if there is no oil leak. I will not change it if there is no oil leak. Bear in mind, some owner who changed the OWV still experience the overcranking sound.

I think avoid it, please try this method to start car.

1. Insert Key Fob
2. Press Start Button
3. Press Start button again and wait for 10 seconds
4. Press foot brake and then press start button again.


Hope it helps.

mat79. what is this new engine adaptation program? does it same with updating ECU? does all proton sc provide this changes?

need to ask few things bout the previous post

-engine adaptation?..whats that? is the ecu update?..any difference so far by member here?

- hu update?..after update got what improvement??

mat79..proton going to recall back some batch of preve to change ocv??..is it the same as owv??..so the engine cranking sound during startup is caused by owv or ocv???

This post has been edited by wongth7: Sep 10 2012, 10:23 PM

Dhuang or anyone without the OWV problem,
can you make a short video of your car cranking?

i think mine sounded like Rufez's from time to time and it never crosses my mind it's the OWV problem...

This post has been edited by kongyw: Sep 10 2012, 10:33 PM

sound just like mine ..OWV problem

Ok bro i will. Thanks

I had both the same problem also as the above it only happened when i start the car first time for the day. It doesnt happened everyday but it is annoying to hear that sound and the meter rpm.

Bro mat79 please advise.......

i TEND TO AGREE WITH WHAT BRO gIGABit said here.. If no oil leak that thing is better be left untouched. Just try the new start up sequence. I've been doing that for months & mine is ok just fine.

Besides, Rufez's over-crank is so much less compared to our very own rich8833 here..

Kongyw, I can but now don't have any friends nearby to start the car while I'm filming the engine..

Yes, I experienced this a few times.. dint really bothered me as i juz switch it off but it's weird though... Any idea what's it about?