I have a lightly modded 02 gtp and my car has misfires but only in park. Aeroforce says 2 4 6 8 and one time 10 misfires! Why is it multiples of two and why only in park? I get NO light and no codes and gauge doesnt tell me which cylinder is the problem. Since I noticed the misfires I have changed coils and put in 104 autolites. My wires are msd only year old (but they are the kind you have to put together yourself and cut) Maybe wires? If not it wont be cheap im thinking ICM MAF Fuel Injector or heaven forbid a chipped piston? I have a tune with overkill but could that cause a problem he knew I had stock injectors.. At least I hope...
