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1989 Honda Prelude runs at hight rpms until warmed up

1989 Honda Prelude runs at really high rpms, sounds like it will blow up for about 5-10 minutes then down shifts really hard and runs normal and good.

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Check for vacumm leaks or disconnected vacuumm hoses around the in take manifold!

Posted on Nov 24, 2008

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I have a 1989 Mazda 323, when cold engine idles very high, when very cold it idles so high that rev limiter kicks in, and it revs up, limiter kicks in, revs up limiter kicks in, once it warms up idle drops...


Have it looked at by a dealer,iam not sure here but i think you have a vacumn leak like the feed pipe to the servo split but really you need a mechanic who works on these cars day in day out and they will go straight too the problem for you

Jan 18, 2015 | 1989 Mazda 323

1 Answer

I have a 89 honda prelude turns over but no fire from the coil


My honda prelude 1989 runs speed and later it will be slow and cannot run again.

Sep 02, 2011 | 1989 Honda Prelude

1 Answer

My 1989 prelude looses rpms when i press the brakes


Hi,
Sounds like your power brake Vacuum Booster has a leak. The vacuum
leak will cause the engine to lose RPM.
You should have it checked out as it will eventually start affecting your
brakes.

May 27, 2010 | 1989 Honda Prelude

1 Answer

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.

Oct 01, 2009 | 1989 Honda Prelude

1 Answer

My 1989 prelude is skippingh and sputtering


I had a similar problem. it would run great when the motor was cold until it started warming up. and then when i'd give it gas to get speed up it would act like it was either starving for gas or getting too much. I first started at the fuel injectors, pulled out the fuel filter and dumped it out, gas looked dirty so i replaced fuel filter and it didn't fix the problem, i then checked the fuel pump but it was ok. next i pulled the fuel tank and when i pulled out the pickup tube the screen at the end was clogged and their was chunks floating in the tank. Cleaned it all really well and havent had that problem since. hope this helps you

May 09, 2009 | 1989 Honda Prelude

1 Answer

Spits and sputters only at low rpms


electrical issus. have you ever replaced the spark plugs and wires? distributer cap and rotor? might be time to do this routine maintenence.

Apr 29, 2009 | 1985 Honda Prelude

1 Answer

1989 honda prelude enigne idles high then low irratic


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 temporarily seal the inlet manifold .and the eratic idling should disappear for some time.
If it does, you know there is leak in inlet manifold which you can take of and refit with a new gasket.

Oct 27, 2008 | 1989 Honda Prelude

1 Answer

Starting problem


Had similar problem with a Gemini. Try releasing the petrol filler cap before starting to equalise fuel tank/fuel line pressures.

Jun 15, 2008 | 1989 Honda Prelude

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