Thread: Stumped

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  1. #1 Stumped 
    GT Level Member DWosik13's Avatar
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    Yesterday night my check engine light came on rough idling than got the code and its multiple missfires... i have new plugs, wires, my coils are fine so is my module, vacuum lines are all good and i have no idea but than my light went off and my engine stopped running hard but now i have a small knock after i hit the gas... any ideas?
    2002 BLACK GTP ... R.I.P.

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  2. #2 Re: Stumped 
    SE Level Member rfmgtp02's Avatar
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    Make sure all plug wires are properly attached and in the right order. Cleaning the MAF wouldnt be a bad idea. Try the things that dont cost money first b4 throwing parts at it
    2002 GTP 2DR Red Fire Metallic
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  3. #3 Re: Stumped 
    GT Level Member DWosik13's Avatar
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    well thats the thing i have checked all of those things and i regularly clean my MAF whenever i do a oil change
    2002 BLACK GTP ... R.I.P.

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  4. #4 Re: Stumped 
    SE Level Member TehGTP's Avatar
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    how many miles?
    what sort of maitenance have you done to the car?
    2007 Corvette Z06 - BFD Cam / E85 / milled & fixed heads
    2006 GTO M6 18's - SOLD - VRX5 Cam | FAST 102 | Exhaust
    2001 GTP - SOLD - 1.9 | TOG's | E85 | LC1 | B+G | AGX | GMPP | 3EP
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  5. #5 Re: Stumped 
    GT Level Member DWosik13's Avatar
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    108XXX
    new plugs wires oil change every 3000 miles , s/c oil changed every 30,000 basically all basic tune up type stuff
    2002 BLACK GTP ... R.I.P.

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  6. #6 Re: Stumped 
    I live here. UR LOSN's Avatar
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    I would check your plugs for any hailrine cracks....


    that would cause a misfire, that would make me think the wires are bad....... its causing the spark to arc into the plug.....
    2001 GTP- PT76 turbo, Intense Drag cars old engine, Stage 4 Intense turbo cam,FMIC,150 wet,Double roller timing chain,Diamond forged coated pistons 8:0:1,Diamond piston rings,Cryoed L32 connecting rods,Cryoed crank,Clevite77 main bearings,Clevite77 cam bearings,Clevite77 L32 rod bearings,ARP Everything, Intense/meizere true billet Flexplate,Intense Wilson UIM/LIM,Intense oil pressure kit,Cometic,OE-R lifters,Cryoed L67 block,ATI turbo dampner,80# inject,Weldon 2035 fp,Aero Fuel Rails,AL cradle
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  7. #7 Re: Stumped 
    SE Level Member TehGTP's Avatar
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    if it happend soon after you did plugs and wires, then i would be willing to bet that is where your issue ends.
    had you made ANY other changes prior to this issue?

    otherwise have your coil packs and iginition module tested.
    dont just say they are fine, give us a reason why you think they are fine.
    any other codes?
    2007 Corvette Z06 - BFD Cam / E85 / milled & fixed heads
    2006 GTO M6 18's - SOLD - VRX5 Cam | FAST 102 | Exhaust
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  8. #8 Re: Stumped 
    GT Level Member DWosik13's Avatar
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    i had both my coils and module tested... but my missfires stopped i just have a slight knock i will try to videotape it for you
    2002 BLACK GTP ... R.I.P.

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