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misfire

  1. Electronics
    HELP so iv had my 06 ls3 heads / unknown cammed gto for about 7 months since then its been having a random misfire on cylinder 8 and running rich . Does not show CEL , i only knew it was misfiring by the scanner on HP tuners . Couldnt figure out what it is. Replaced coils,plugs,wires,injectors...
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