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Oh, boy, that's a good one Posted by RS [Email] ![]() ![]() ![]() In Reply to: Re: Does it idle really high when you finally stop?, Nathan Pflaum ![]() |
On the LH 2.4 cars, the AIC valve should just close when it's unplugged and the idle shouldn't change.
Just for the heck of it, check the throttle position sensor. Sometimes they get some crud in them and physically hold the throttle open. Also, check it for continuity with the throttle closed. You should get continuity between pins 1 & 2 with the throttle closed.
Other than that, I'd look for a vacuum leak. If you've recently changed the hoses and the bushings that hold the vacuum nipples into the intake manifold and valve cover, I'd look at the bushing that holds the PCV bayonet into the plastic turbo duct and the brake booster (if '90s have vacuum brake boosters, that is.)
You may also want to check the hoses for the AIC valve. Sometimes one of them will get soft from oil exposure.
Have you looked for binding in the throttle cable?
Let us know what you find. I'm really curious about this problem.
posted by 63.148.1...
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