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2003 Chevrolet S10 Question: i have code p0304, how to fix it ?

 

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helptoart, 2.2L 4 Cylinder, Vancouver, WA, December 20, 2012, 22:38
 Rookie

i had good compression, good spark. i replaced : new ignition coils spark plugs and wires

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  • Answer #1

    pushrod December 21, 2012, 00:13
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     Master

    Check for a vaccum leak near # 4 cyl. Check for injector pulse and fuel also. IF you have all that stuff you stated.
    How much compression did you get (psi) ?

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  • Answer #2

    Greg's Orange Auto (12984 Answers) , Orange, CA - (714) 361-9386
    globalhelper December 21, 2012, 06:09
     Master

    sounds like an inj issue or pulse signal at inj.

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