1985 Pontiac Firebird "rough running" Questions

...running very rough. After painstakingly replaceing all 8 fuel injectors, it still runs rough. What else could it possibly be? I'm running out of options. I've replaced the ECM, IAC, fuel filter, etc. ...

...running rough at idle and at speed. The Car is running rough at idle and at speed. The voltmeter seems to drop down at idle also. I don't believe it is a spark plug or wire. Help! try the coil pack ...

rough after running for 10 minutes or so changed ignition control module,has new coolant sensor,removed front section of tuned port and cleaned it out,changed fuel filter,put lucas fuel system cleaner

...running rough ( shaking, hesitation) feels like it is going to stall out. But sometimes it will run perfect for a day or so then right back to running bad?????? PLEASE HELP.. Have you ran a diagnotic ...

firebird run rough My 1999 Pontiac firebird (6 cylinder) runs real rough. When you press the gas at a red light it takes off fine but when you go to pass someone it acts like the fuel injectors are ...

1998 firebird 3.8 v6 92000 miles runs great until 3000 rpm then it runs rough and starts to miss Same thing happened to my 94 firebird. Did your car run hot at any point? Mine overheated and ended up ...

car runs rough at low speeds but runs fine when you get on it.any idea's????? Try replacing the fuel filter, checking the injectors and checking the catalytic convertor.

My 97 firebird 3800 series 2 v6 runs rough idles high in park has no power and wont stay running and stalls when I give it gas. need a tune-up, full tune-up

my 93 firebird formula starts but runs rough and stallls out. my 93 firebird formula starts but it runs roughg and stalls out. also i cant push the gas pedal at all or it misfires stalls out. what ...

...running rough when i step down on the gas it runs like its running on four cylinders but if i only step down on the gas only a little bit it runs good i put new plugs wires gas filter air filter took ...