Question about 1984 Honda Prelude

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I have an 84 honda prelude dual carb 1.8. just seem slugish to me like it lacks power and when its in high rpm it smokes alitte maybe from it dumping to much gas when pedal is to floor cause dont smoke any other time

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Check the compression, if it's less than 150 psi that engine is tired.

Posted on Oct 02, 2009

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1 Answer

1989 Honda Prelude, passed all smog tests except idles at 1100rpm...what's the problem?


start spraying carb cleaner around the intake and listen for rpm drop.

Oct 09, 2012 | 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

Rpm's are high but no torque, was running fine till we had big rainstorm and next day just lacks power... No moisture in distributor cap or the mass airflow sensor. I have heard it may be the catalytic...


if the catalytic converter is plugged,you will have low exhaust output.
The only sure way to tell is to disconnect the cat and see if the power changes.

Feb 26, 2010 | 1990 Honda Prelude

1 Answer

Rough idle(200-300RPM)off idle runs great no white smoke


Have you changed your fast idle valve or air idel control valve I would change the air idle valve because it is the one with an electric sensor.

May 22, 2009 | 1990 Honda Prelude

1 Answer

Runs great, but stumbles(200/300 RPM)at idle


Thats usually a bad symptom. Burnt valve. Do you see white smoke when you first start the car in the morning? If so valve guides and and valves need work. I just went through it with my car. I removed the head and had it overhauled 2 hundred bucks. and now it runs great. Good luck P.S if you have a shop do it it will be 14 hundred.

May 22, 2009 | 1990 Honda Prelude

1 Answer

1993 honda prelude si 2.3 liters cuts off while driving


Smoking out the tailpipe is usually caused by worn rings, or really worn valve guide seals. (if it is an oil smoke) If it is a black smoke, it is running too rich, maybe an injector leaking or stuck open.

Mar 07, 2009 | 1993 Honda Prelude

2 Answers

Black smoke


I have to disagree with diagnosis, sorry. Black smoke is rich mixture of fuel, & blue/white is oil and/or coolant .

Dec 30, 2008 | 1988 Honda Prelude

1 Answer

1984 Honda Prelude


possibly could be a base plate gasket leak from under carb, very common, or a vacuum hose leak

Jun 28, 2008 | 1984 Honda Prelude

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