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:

Own this car?

Share your experience with others.

1991 Honda Prelude

Review another car

CarGurus Experts

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

Know more, shop wisely

Search

Related Models For Sale

Used Honda Civic
1,412 Great Deals out of 30,131 listings starting at $800
Used Acura Integra
73 Great Deals out of 5,030 listings starting at $24,991
Used Honda Accord
1,522 Great Deals out of 29,661 listings starting at $450
Used Honda S2000
20 Great Deals out of 206 listings starting at $14,990
Used Chevrolet Corvette
735 Great Deals out of 12,414 listings starting at $3,200
Used Toyota Supra
29 Great Deals out of 700 listings starting at $34,999
Used Toyota MR2
21 listings starting at $14,900
Used Ford Mustang
901 Great Deals out of 22,517 listings starting at $1,000
Used BMW 3 Series
1,109 Great Deals out of 12,823 listings starting at $879
Used Acura NSX
4 Great Deals out of 97 listings starting at $99,797

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.