1987 Honda Prelude "rough idle" Questions

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...rough when first started then it starts the high and low idle I had the same problem on a Rover. There was a leak in inlet manifold that was caussing the problem. To verify, spray some sealant to ...

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Question about Honda Prelude

1 Answer

rough idle my car has a rough idle and when i go to drive it the RPM won't go over 2000..what would cause this? check your timing??!

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Question about Honda Prelude

3 Answers

IDLE DIRTY AIR FILTER. MIXTURE SCREWS IMPROPERLY ADJUSTED.VACUUM LEAK AT CARBURETOR GASKET ON INTAKE.PVC SYSTEM CLOGGED.A DEFECTIVE EGR VALVE.ALL OF THESE PROBLEMS CAN CAUSE ROUGH IDLING.IF ENGINE HAS

idle rough when cold and I replaced the idle air control valve where are the rpm's at when its idling cold? if the cold idle is below 1500 rpm. adjust it by tightning/loosing the intake spring located

Rough idle(200-300RPM)off idle runs great no white smoke My 90 Prelude is automatic, carburated(dual Webers). It runs great but idles(more like stumbles)at 2/300 Rpm. Any thoughts? No white smoke. ...

Question about Honda Prelude

1 Answer

...rough idle at around 800 sometimes while running try spraying starter fluid around intake manifold if any change you have vacuume leak. most likely the ecm says i have to much air so that is why it ...

Question about Honda Prelude

1 Answer

rough ideas on what it could be will be muchly apprecitated thanks Check your idle control valve. You might have to replace it, 80-90 bucks new. Or see if there is an air leak from the intake manifold

Question about Honda Prelude

1 Answer

rough idle after warm up It can be a number of things, check for vacuum leaks at the manifold, fuel filter,pcv valve, iac valv

...idle fine, just acceleration causes rough running and any load on the engine causes it to sputter. I changed the fuel filter and PCV. Wondering if injectors need to be changed?? DIRTY INJECTORS OR ...

idle jumps when engine is cold from 1000 to 2500 rpms and starts really rough requires pushin gas petal to start Being efi (electronic fuel injection) the idle should be higher when starting off cold.

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