Stalling when cold and slight hunting when warm..

[user778]

hay guys maybe u can shed some light no this..

When i start the evo from cold it is really rough and if i dont keep the revs up it will stall.... this only happens for about 10 seconds.. after that it will stall if im at full lock.. all this time it is not idling at all well..also when cold i get a ticking noise from the engine..

Now when warn the ticking noise is gone and the car idles a bit better but it is still hunting a bit...

I have changed the plugs and leads just not 100% where to go next.. any help will be great...

Thanks in advance people

[RSE MOTORSPORT]

Could be worth checking the idle control valve, symptoms sound a posibility :-?

Check it out by having the air con off and starting the engine, once started put the air con switch on and see if the engine trys to stall or the revs drop.......If they do it sounds like the idle control valve could be on the way out!

Hope this helps, let me know how you get on.

Tina. xx

[user778]

yeah i does do that. i was thinknig about the idle control valve.. its jsut i cant seem to find it lol ops:

[RSE MOTORSPORT]

Originally Posted by MKS

yeah i does do that. i was thinknig about the idle control valve.. its jsut i cant seem to find it lol ops:

Well I have no idea where it is on the Evo 1 :-? but on my VII its under the throttle body

[user989]

Hi,

As Tina said the idle control valve (stepper motor) sounds like a good start. This info is from the seven but should be of some assistance.

Have you got a dump valve fitted mate ? if so how long ago was it fitted ? and have you checked all the silicon hoses on the car ?

The ISCV can be checked by starting the car and then pulling the connector off it, in effect disconnecting it, if the car then idles fine, your ISCV is faulty, sometimes, they can get clogged with oil and residue, so a clean up with a cleaning fluid MIGHT sort it.

[user778]

just the standard valve fitted..

I have yet to check the idle control valve.. i had a quick look but could not see it

ill get it sorted..