Question about 1991 Honda Prelude

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1991 Honda Prelude, engine idling up and down

The check engine light comes on and then engine idles up and down. could this be a problem with pcv valve?

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  • loquin531 Mar 27, 2009

    yes my idling go up and down

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5 Suggested Answers

brainyass
  • 242 Answers

SOURCE: 2006 pt cruiser idles high with no pcv valve hose connected

Replace the PVC valve, it's probably clogged.

Posted on Nov 21, 2008

  • 9 Answers

SOURCE: replace PCV valve 2001 taurus duratec engline

I dont think it is the PCV but its a good idea to replace the PCV at least once a year either way, and its very cheap, usually $2-$5 at autozone.

Posted on Mar 31, 2009

  • 21 Answers

SOURCE: Had a rough idle and the engine dies while

does yurs have the idle air control motor if so look into that

Posted on Jul 12, 2009

yankstorm02
  • 145 Answers

SOURCE: 1989 honda prelude. engine surges. from normal to 2100 rpms

There is a warm up valve on the throttle body(should have 2 small coolant hoses). remove the valve and have someone start the car while you block the port to the valve on the intake. If that clears up the problem you can cut a piece of cardboard to mount in between the valve and intake.should straighten it out.

Posted on Oct 01, 2009

YellowNo5
  • 268 Answers

SOURCE: 1991 honda accord idles funny and feels like its

Remove the pass side kick panel (Plastic Part) that would be near the right of the passenger's foot. Locate a small blue plug. You jump the terminals together inside the plug with a paper clip. THEN, turn your key ignition on to power up everything but don't engage the starter. Count the amount of times the check engine light flashes. It's like morse code. A solid longer blink indicates the amount of the first number... a quicker flash will indicate the second number. Here's an example: ___ _ _ _ _ That would be code 14. Let me know what code you get and write back... I don't have room to list every code for 90-91 Accord. I'll check back frequently.

Posted on Oct 04, 2009

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1 Answer

Blue smoke 96 honda prelude


Blue some is burning oil. Check your PCV valve 1st, but if this is bad, your idle would be high. If it smokes when 1st starting only, the valve guides and/or seals are bad. If it smokes while driving, the rings are worn out.

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Hi you are going to need an idle air control motor. This motor/sensor is what holds your idle at the correct rpm at idle.

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tepfy

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1 Answer

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