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

27,495

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
    1,100
  • #2
    Takoda Fraser
    Reputation
    1,030
  • #3
    Jonathan Ford
    Reputation
    1,010
View All

Related Models For Sale

Used Honda Accord
1,020 Great Deals out of 56,754 listings starting at $899
Used Toyota Corolla
757 Great Deals out of 53,264 listings starting at $1,502
Used Toyota Camry
920 Great Deals out of 79,558 listings starting at $750
Used Honda Accord Coupe
149 Great Deals out of 8,293 listings starting at $1,450
Used BMW 3 Series
1,031 Great Deals out of 32,836 listings starting at $999
Used Ford Mustang
588 Great Deals out of 36,168 listings starting at $1,800
Used Hyundai Sonata
714 Great Deals out of 49,894 listings starting at $500

Used Cars For Sale

2017 Honda Civic LX For Sale
18,096 listings starting at $16,393
2016 Honda Civic LX For Sale
26 Great Deals out of 1,082 listings starting at $11,999
2015 Honda Civic LX For Sale
53 Great Deals out of 2,132 listings starting at $8,995
2014 Honda Civic LX For Sale
135 Great Deals out of 3,852 listings starting at $6,400
2013 Honda Civic LX For Sale
40 Great Deals out of 918 listings starting at $6,580

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.