I have a "91 Honda prelude si after starting the rpms go up then go down to idle and then up again. This repeats itself for about 4-5 minutes then idles out normally. What could cause this to happen?

Asked by archie2272 Feb 20, 2015 at 05:44 PM about the 1991 Honda Prelude 2 Dr Si Coupe

Question type: Maintenance & Repair

1 Answer

20

the air control valve !! if the car has fuel injection engine is located attached to the injection manifold and attached by three bolts disconnect the pipes flush the unit out with electrical cleaner including the bronze gauze filter ensure it is rely clean blow out with compressor is best give a few squirtsof WD 40 and re,assemble ensuring all surfaces are clean also check for leaks in all air feeds to the unit and bolts are correctly tightened this worked on my imported 94 2.2 si

2 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    dandyoun
    Reputation
    330
  • #2
    Tyler Siska
    Reputation
    170
  • #2
    Nick Ybarra
    Reputation
    170
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Acura Integra
5 Great Deals out of 69 listings starting at $33,985
Used Honda Civic
206 Great Deals out of 4,071 listings starting at $2,877
Used Honda S2000
5 Great Deals out of 20 listings starting at $24,991
Used Honda Accord
52 Great Deals out of 978 listings starting at $2,995
Used Toyota Supra
5 Great Deals out of 46 listings starting at $50,500
Used Ford Mustang
42 Great Deals out of 1,614 listings starting at $8,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.