CRXJerk Posted May 20, 2007 Share Posted May 20, 2007 How do i test/adjust the IAC valve and TPS in an 88 CRX SI? Symtoms are revs to cycle between about 800 and 1800 rpm. Also the car is jerky when driving around at low speed. Link to comment Share on other sites More sharing options...
crxtacy Posted May 23, 2007 Share Posted May 23, 2007 to test the iacv ,with all loads off,engine @ operating temp. ,turn on your a/c ,headlights (hi beams) you should hear the idle go up.As for the tps,its integrated with the throttle body.Only testing,if there is no code,is for excessove wear or binding at the throttle plate area. Does it rev gradually from 800 rpm to 1800 rpm ? Or does it idle spiratically 800 rpm to 1800 rpm ? Link to comment Share on other sites More sharing options...
CRXJerk Posted May 23, 2007 Author Share Posted May 23, 2007 rythmicly up and holds for a seccond then down. Shoots up to 1800 right away after hitting 800. Link to comment Share on other sites More sharing options...
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