Clio ph1 172 idle problem

[Andyman]

When i turn the key the idle drops straight to about 400 rpm and then basically stalls.

Doesn't matter if the engine is hot or cold although when the engine is hot its usually more intermittent. Car drivers 100% fine when warm although when cold rev counter needle plummets between gear changes rather than gently dropping.


Tried:
Two different coolant sensors
Different coil pack
Cleaned the TDC sensor
Cleaned ISCV


Anyone have any idea's what else to try or what it could be?

 

[The Chubby Pirate]

Have you cleaned the throttle body up?

 

[StuPh1172]

I am getting this too, i am going to try cleaning the throttle body like Danny had suggested before trying any sensors or that

 

[Andyman]

I thought the TB remained closed at idle ? :S

 

[lewvr6]

Had similar recently, cleaning the ICV made little to no difference. New ICV sorted it. You can drill out the rivets holding the ICV into the plastic housing bit, and buy a laguna or similar item (just the moving electrical valve) from eBay etc-then fit into the ICV housing of the ph1.

A Replacement ph1 actual ICV unit was mega bucks! Search idle control valve replacement, or along those lines and someone suggests what I've mentioned above and possibly even a part number.

 

[lewvr6]

Not sure if this'll work but....

http://www.cliosport.net/forum/show...alve-ph1-172&highlight=Idle+control+valve+ph1

 

[imprezaworks]

Replace the tdc sensor, it's cheap and easy enough to do

 

[Andyman]

Had similar recently, cleaning the ICV made little to no difference. New ICV sorted it. You can drill out the rivets holding the ICV into the plastic housing bit, and buy a laguna or similar item (just the moving electrical valve) from eBay etc-then fit into the ICV housing of the ph1.

A Replacement ph1 actual ICV unit was mega bucks! Search idle control valve replacement, or along those lines and someone suggests what I've mentioned above and possibly even a part number.

Thanks for the info mate. Iv got a cannibalism 172 ICV which i took apart years ago so might be worth a go knocking something up.

 

[Dan519]

sounds like the ICV has stopped working completely

 

[Andyman]

The very odd time it idles ok then as soon as i switch off and re-start its instantly screwed back up again

 

[lewvr6]

Yeah give it a go, symptoms sound exactly like ICV. I just got the valve linked in the thread, drill out 2 rivets, fit new valve and use 2 small bolts to secure it.
I did have to play with the new valve piston position a couple of times, I.e adjust how far in or out it was set before bolting into the housing, to get it working (I assume it couldn't fully close and/or open when it was not right)

 

[ashs_clio]

I had this read loads of threads , changed coilnpack, spark plugs, map sensor, ...wiped codes,

i got a different throttle body, changed it yesterday, runs 100 times better, no stalling or bad idle wen start it up, no stalling at traffic lights

 

[Andyman]

Cheers for the help guys.

I'm going to try the ICV route first as it seems the most logical.

 

[Andyman]

All sorted. Bought a new ICV and it cured the problem