I have alot of questions so this is one of many I have a 1989 crx si with a b20z2 motor and a b16 tranny the motor while idling revs up and down it pulls it air in the intake while it does this any knowledge on why it does this?

Tyler Thomas
0

Asked by Apr 15, 2013 at 12:08 AM about the 1989 Honda Civic CRX 2 Dr Si Hatchback

Question type: Maintenance & Repair

2 Answers

Yes. Check ALL your smog devices. One of them is not behaving properly.

1 out of 1 people think this is helpful.
Nate Martin
35

idle air control valve is dirty or the coolant lines in ur throttle body are clogged

2 out of 2 people think this is helpful.

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