what would cause a single cylinder to misfire?
09-28-2005, 08:12 AM
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what would cause a single cylinder to misfire?
i posted a few days ago about my 99 1.8t jerking and surging at WOT. i finally found out that the problem was due to misfiring but still cant find the cause. vagcom says that cylinder 1 is misfiring so the first thing i did was switch coilpacks with cylinder 2, still doesnt work. i then tested the output stage with the instructions posted in the tech section, nothing wrong with that. next i tested the resistance of the fuel injector and compared it to that of the cyl. 2 injector, same values...im running out of ideas...can anyone think of anything else which would cause this?
09-28-2005, 08:17 AM
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correct, i didnt swap spark plugs...
i have a very limited amount of tools at school and a spark plug socket and extension happens to be something im missing...what are the chances it could just be a spark plug?
09-28-2005, 08:27 AM
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the strange thing is that it only happens under heavy loads...
either at WOT or going uphill with 4 people in the car. everything runs fine normally. could a spark plug exibit that behavior? also, how could the IAT only cause 1 cylinder to misfire and not cause any other apparent problems?
