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Old Apr 15, 2004 | 09:55 AM
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MaxType 240
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Joined: Jul 2003
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Default Resolving your Bad Idle (KA Engines)

So many people have idle issues and this is the most common solution. It took me about 30min to do but I have small hands.

Here's the IACV:
http://www.geocities.com/motorcity/s...y/5167/iaa.jpg

The pic is taken from the rear. To find it from the passenger side, proceed to the end of the intake manifold and look under the EGR piping.

0. Remove vacuum line.
1. Disconnect IACV-FICD harness (purple, be careful).
2. Unscrew IACV-FICD solenoid (don't drop anything)
3. Remove 10mm bolts (there are 4).
4. The 4th is under the solenoid in the pic.
5. Remove gray connector harness.
6. Remove IACV housing, clean w/ carb cleaner. Remove idle adjustment valve and clean out as well.
7. Gasket will crumble apart. Scrape away all residue.
8. Carb clean inside the manifold port, wipe away with cloth.
9. Re-gasket and re-assemble.

Adjust Idle:
1. Have the car warmed up
2. Disconnect the TPS harness
3. Turn the idle adj. screw on the IAA to get the car to idle at 650 rpm.
4. Reconnect the TPS harness and your car should purr at 700 or so rpm. (The Factory manual gives a +/- tolerance of 50 rpm).

Hope this helps you all out,

Jesse
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Last edited by MaxType 240; Apr 20, 2004 at 02:36 AM.
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