Question about 1989 Honda CRX

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My 1989 Honda crx si surges on the rpms. It will go from about 1800- 900 rpms and back again. What's wrong?

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It's called hunting. You need to clean out the EAVC unit in the intake manifold. Take off the air filter and housing, run carb cleaner through the intake for 20 minutes or so.

Next bleed the radiator by taking the rad cap off and start the car, let the fan kick in twice (about 20 mins again) and the air bubbles will have been forced out.

Take the car for a spin and the vote for me when it's fixed :)

Posted on Jun 24, 2010

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Posted on Jan 02, 2017

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