I have a 1990 honda civic lx and the engine has a loss of power and rough idle and also burning more fuel than it should. also smoke coming out the exaust with a lean fuel smell. just took the cat off

Asked by Dec 27, 2015 at 12:23 PM about the 1990 Honda Civic LX

Question type: General

2 Answers

28,065

and????plugs good? vacuume leaks??? intake gaskets/seals ok...

10

Yeah look for vacuum leaks around the intake manifold and throttle body and intake manifold gaskets may need to be replaced! Also the problem could be the idle control valve located at the back of the intake manifold! Also could be bad injectors/fuel pump... But check the left side of the intake manifold where the map sensor is and there looks like a big screw you need a flat head for it and twist it all the way on the try loosining it and see if you notice a change in the idle

Your Answer

Honda Civic Experts

  • #1
    Tom Demyan
    Reputation
    1,150
  • #2
    Takoda Fraser
    Reputation
    1,030
  • #3
    Jonathan Ford
    Reputation
    1,010
View All

Related Models For Sale

Used Honda Accord
1,111 Great Deals out of 73,321 listings starting at $1,100
Used Toyota Corolla
963 Great Deals out of 65,101 listings starting at $1,850
Used Toyota Camry
1,135 Great Deals out of 86,705 listings starting at $800
Used Honda Accord Coupe
169 Great Deals out of 6,816 listings starting at $1,691
Used Ford Mustang
611 Great Deals out of 39,252 listings starting at $1,895
Used BMW 3 Series
1,168 Great Deals out of 32,726 listings starting at $1,200
Used Hyundai Sonata
929 Great Deals out of 56,726 listings starting at $1,500

Used Cars For Sale

2017 Honda Civic LX For Sale
10 Great Deals out of 5,365 listings starting at $12,991
2016 Honda Civic LX For Sale
48 Great Deals out of 1,217 listings starting at $10,995
2015 Honda Civic LX For Sale
122 Great Deals out of 2,729 listings starting at $8,475
2014 Honda Civic LX For Sale
123 Great Deals out of 2,925 listings starting at $6,400
2013 Honda Civic LX For Sale
35 Great Deals out of 831 listings starting at $5,495

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.