Since cleaning the throttle bodies about 6

weeks ago i have a problem with idle anything

between 1500 and 2000 rpm the hotter the engine the higher the revs.

 

Yes, did do the negative earth thing for more than 30 mins and must have done some 1200 miles since so ECU should have learnt by

now.

 

To date have done the following:

 

Cleaned temp sensor connectors, these were shite and this has made a difference now idling at 1100 rpm without air con / fan running, temp sensor is working as revs rise

if lead is removed.

 

Cleaned throttle position sensor connectors.

 

Cleaned MAS sensor connectors.

 

I now want to adjust the idle but i am fu*ked

if i can find the idle screw, where is it

located in the engine bay?

 

have read the stuff on TT Net etc but this dosent indicate where the IAA unit actually is! where is it?

 

Also would appreciate any further suggestions on what can be done?

 

Cheerz chapz

 

Ian

 

 

 

Look at z-car.net

Maciej has a good tech section that covers the problem. Worked for me.

Thanks for the recommendation Andy!

 

Ian,

I would suggest that you adjust the TPS voltage first.

Then go and adjust that idle screw.

If that doesn't help then the AAC valve in the IAA unit could be

dirty, so it's not closing properly.

You could also have a vacuum leak somewhere.

 

Check out the Tech section of my home page for more.

 

Good luck!

Maciej

 

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