Eratic 205 Idling

Dec 30, 2004 4 Replies

Hi gang,


1990 1.6 GTi that does the following:

Will not idle when cold, starts first turn of the key but then runs very roughly under throttle, kangarooing down the road at times.



Whilst warming up runs fine, idles anywhere between 600 & 1500 revs



Once warm, will not idle which is a a real pain in the arse at junctions.



Basically the car drives beautifully and is nice and powerful when it's not running cold, or warm and it drinks fuel too???????



Air sensor problem?



Insert suggestion..................



Cheers in advance,



SODA


This isn't a job for the home handyman. There are two fuel jets, when the engine is cold or when you are driving hard both open and gasoline pours into the engine manifold - just like driving with the choke always open. When your engine is warm and idling or running along gently, one jet is used - to save fuel. Either a jet is fouled or someone has been fiddling with the mix adjustments. A good peugeot service agent with a history, ought to know how to fix it. A carburettor and injection specialist would do a nicer job, probably clean and tune the injection assembly as well - it would be better than new.

Good luck,

Ed.

Hi,

If you mean there's a cold-start injector, it isn't the case on these cars. There were some L-Jetronic with a cold-start injectors, but not on 205s. I guess I'd check the coolant temp sensor.

HTH, G.T snipped-for-privacy@worldonline.fr

205 Diesel & turbo-Diesel :
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exactly what my Nova was/is doing.

after spending nearly £350 on electrical parts and vacuum sensor and garage fees it turns out to be the ECU.

At cold the engine temp sensor was fluctuating between 30 and 80C thus altering the timing and fuel injection. The temp sensor was renewed but the fault was still there. Vauxhall told me it's the ECU which I have now sent away for checking/repair.

dj

Have you checked the idle stepper motor?

attached to the main throttle air valve.

If this is gubbed then it does what you have described.

Around 40 ukp from eurocarparts.

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