1992mustangzex

Im getting a miss it only happins sometimes. I can drive for an hour and it will be fine, then park and drive again and it does it. I have changed my fuel filter, checked my wires new plugs, cap, rotor, cleaned my MAF and checked my TPS,i have also checked for vacum leaks. and 2 new O2s.timmings at 10 dig, lots of fuel injector cleaner. i had 3 codes on the computer 31 41 91, after i changed the o2s i cleared the codes and its bin a week and they havent come back. it never happins when the car is cold and and WOT. If i sit in neutral and rev it passed 4 grand it will miss too. please give me some help the car runs perfect besides this stupid miss. my fuel pressure is at 41 at idle, it misses at idle 2 somtimes.

bbk headers, taylor wires,2.5 inch magnaflow mufflers h pipe no cats. 100 zot no2.



13.5 at 107mph

fordguy17

you say you checked your wires. have you replaced them yet? they can sometimes get burned by the headers and arc over.

1992mustangzex

thanks for the reply, i had to wires do that and it was missing all the time, but i changed them, it started to miss again like a week later, but only like 2 or 3 times then it would stop for like 30 mins. and when it misses my tack drops then goes back up, im starting to think its comming from the distributer or the ignition module. if you have anymore advise i would love to hear it, thanks.