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  1. 12-01-2015 04:57 PM #1
    rza96746
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    kapaa ,Hi.

    Trouble code P0301 cylinder 1 misfire

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    I need help please... I have a 2002 A4 Quattro 1.8T and have trouble code P0301 cylinder 1 misfire. I have replaced the pcv, maf coil packs and spark plugs. This has not changed anything, the car still runs rough. Is there anything else that I need to look at?
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  2. 12-01-2015 05:21 PM #2
    old guy
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    Two suggestions. First pull back on the cover of the #1 coil pack harness connector and look for cracked insulation on any of the wires.




    If that checks out try switching the fuel injectors between cylinder #1 and #2 and see if the misfire follows the injector.
    '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. Sold (and missed dearly).
    '13 A5 6-MT Needs more Fun Stuff: Neuspeed PM / 3.0 TDI Intercooler / H&R OE Sport Springs / Bilstein B8 Shocks / TyrolSport Brake Stiffeners / ECS Short Shifter / S5 Side Skirts / RS Grille
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