Idle Speed

Author
Discussion

djpt

Original Poster:

55 posts

244 months

Friday 27th August 2004
quotequote all
This question relates to a 1997 Renault Clio 1.2 (injection) RL Paris.

When the engine is on tick over at whatever temperature it struggles to keep running and sometimes cuts out. It is the idle speed of the engine that needs adjusting but my Haynes manual says you cannot adjust it on a petrol injection engine. Is this true? If so, what can I do to stop the engine dying on tick over, surely there is some way of adjusting it?

Mikey G

4,784 posts

247 months

Saturday 28th August 2004
quotequote all
Most fuel injected engines have there idle speed controled by the ECU via an idle speed control valve.
you may find this valve is dirty and sticking or just unplugged!
If you can find it, (i dont know where it could be) take it off and give it a good clean and try it, we have to do this quite regular on my mates KA as that suffers from over revving as it struggles to close.

HTH

Mike

djpt

Original Poster:

55 posts

244 months

Saturday 11th September 2004
quotequote all
I have had a look in the Haynes manual and also had a poke around under the bonnet and I cannot find the ECU anywhere! Has anyone any idea where the ECU is for a Renault Clio 1.2 1997 (R) Petrol?

The Haynes manual says the idle speed is adjusted automatically by the ECU, but dosen't tell you where the damn thing is!!

stevieturbo

17,535 posts

254 months

Sunday 12th September 2004
quotequote all
Users cannot, and should not try to adjust the idle speed on modern cars.

It is totally controlled by the ecu, and if there is a problem, then that needs sorted to correct it. Not that it needs 'adjusted'

Even if you do find the ecu, you will be able to do nothing with it.

Trying to adjust things may appear to solve the problem, but you will be in fact steering around the actual problem, and may indeed create even more problems which become even harder to fix, as so many things which should not have been touched, have been.

>> Edited by stevieturbo on Sunday 12th September 01:08