Idle issue

[tobybmw]

So at times regardless of outside temp or engine temp. My car will idle at 1000 rpms up to 1500. I have unplugged the connection to the ICV before and it would drop to the 650-700 rpm level which is normal however now when you disconnect the unplug the source to the ICV nothing changes. Any ideas as to a probable fix. Thanks
Also car is 90 325is

Andy

[KenC]

Has your ICV been recently cleaned?

[tobybmw]

kencopperwheat :

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Has your ICV been recently cleaned?

Yes it was recently cleaned.

Andy

[Jordan]

kencopperwheat :

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Has your ICV been recently cleaned?

Yes it was recently cleaned.

Andy

Congrats, you killed it when it was cleaned. Fairly common. You MUST use electronic friendly spray cleaner or you will kill the ICV.

Time for a new one, or a good used one.

[tobybmw]

excellent.
Thanks Jordan

Andy

[Kondour]

with mine, i try to unplug the eletrical plug from icv and nothing happens. ICV is brand new. Any ideas? car is 1988 IS

[65Matt]

Try this page for diagnosis:

http://www.mesaperformance.com/faqs/idle.html

And follow the instructions in your bentley manual.

I had a horrible bouncing idle. When I unplugged the ICV, the idle changed (it actually ran better). Following the bentley procedures, I noticed that my ICV closed all the way when the ignition was turned on. I checked the throttle body sensor, and it was not reading correctly when the throttle was closed (at idle). I adjusted the sensor and it purrs like a kitten now.

[E30godz]

damnit everyone always told me to use carb cleaner to clean it out...


is carb cleaner electric friendly?

[KenC]

damnit everyone always told me to use carb cleaner to clean it out...


is carb cleaner electric friendly?

Yes, use carb cleaner.

[Kavkazia]

Does it start hard sometimes?

Check for vacuum leaks, make sure intake boot isn't cracked underneath.

[Jordan]

damnit everyone always told me to use carb cleaner to clean it out...


is carb cleaner electric friendly?

Yes, use carb cleaner.

NOOOO not carb cleaner.

You need to use electronic friendly spray cleaner. carb cleaner is electrically conductive, special electronic cleaners are not.

[nateb]

Also your O2 or ECU may be suspect.

[LikeCDoos]

You need to use electronic friendly spray cleaner. carb cleaner is electrically conductive, special electronic cleaners are not.

Do they sell these electronic cleaners at pep boys and such? anyone got an example of one?