Shes missin bad

Discussion in 'General Subaru Discussion' started by whistleandsneez, Oct 4, 2005.

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  1. whistleandsneez
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    whistleandsneez New Member

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    my check engine light came on my on wrx and when it turns on it misses really bad at first but then as the motor gets warm it isnt so bad but still misses anybody know what that could be

    04 wrx
    intake
    hks bov
     
    whistleandsneez, Oct 4, 2005
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  2. Steve-o
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    Steve-o Administrator Staff Member

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    nice job at only putting on the 2 mods that are not recommended for a stock ecu'd car. I'd take them both off and reset the ecu.
     
    Steve-o, Oct 4, 2005
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  3. readymix
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    readymix ...Lest ye be trod upon... Staff Member

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    Yep, the HKS bov is full atmosheric which is bad for your car (causes rich conditions at shift) and Intake (any brand) which causes lean conditions and MAF voltage skewing.
    Nothing throws the CELs like making things rich when they need to be leaner and making things too lean when they need to be rich.
     
    readymix, Oct 4, 2005
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  4. wall of tvs
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    wall of tvs Well-Known Member

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    Hmmm....sounds like a misfire, perhaps. Do you know what codes you are throwing?

    I'd pull the plugs and inspect the coilpacks.

    ....also, ditch the intake and BOV. ;)
     
    wall of tvs, Oct 5, 2005
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  5. Dynapar
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    Dynapar Well-Known Member

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    might try new plug wires, if nothing else works.
     
    Dynapar, Oct 5, 2005
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  6. AWDimprezaL
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    AWDimprezaL has more posts than you

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    FYI rexxes dont have plug wires, they have individual coil packs
     
    AWDimprezaL, Oct 5, 2005
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  7. Dynapar
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    Dynapar Well-Known Member

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    blah blah blah....... maybe if he had plug wires he wouldnt have this problem????
     
    Dynapar, Oct 5, 2005
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  8. Zola
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    Zola Well-Known Member

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    Fouled idle air control valve. Your symptoms are exactly what I experienced, cleaning the IACV with some Seafoam took care of it.
     
    Zola, Oct 5, 2005
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  9. whistleandsneez
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    whistleandsneez New Member

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    the car had the miss before the blow off valve was put on and the intake
    thanks for the suggestions guys
     
    whistleandsneez, Oct 7, 2005
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  10. kongzilla
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    kongzilla Well-Known Member

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    I had an intake and hks bov on my old 02 rex. no problem at all. after installing a turbo back exhaut, started having mis firing once in awhile.
     
    kongzilla, Oct 7, 2005
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