Monday, July 9, 2012

1986 Pontiac TransAm 305 TPI bogging issue! HELP!!

1986 Pontiac TransAm 305 TPI bogging issue! HELP!! Tube. Duration : 1.63 Mins.


Hey guys. I have a 1986 Trans Am with the 305 TPI engine. It sat for a few years before i bought it (last July) I have it running to the point where it can drive but I have some issues with it running. First off, it usually hesitates when i start it. By this i mean it cranks starts and revs and drops to like 200 rpm for a few seconds then jumps back to normal. It sounds like it runs very rough, like its missing or the timing is off. it idles normal. If you mash the pedal to the floor it bogs severely. Like it is barely running. if you feather it you can usually get it to climb to redline just fine. This issue is on and off. i never know when it will happen. It also backfires out of the intake when you mash the pedal. I have replaced all 8 spark plugs, whole distributer, cap and rotor. I pulled the engine codes and code 33 comes up (MAF sensor) sensor is fine (wires not broken etc) checked vac hoses etc. Any help would be greatly apreciated. Thanks

Tags: Pontiac Firebird, V8 Engine

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