1991 Pontiac Firebird "code 12" Questions

...code 12 jump a to b on the aldl turn the keey to the on position and the check engine light goes off fan comes on no codes are given not even code 12 Could be a problem in the ECM itself.What is the ...

89 Pontiac gta fix for ecu code 12 CODE PO12 NO DISTRIBUTOR TACH SIGNAL.POSSIBLE CAUSE FAULTY IGNITION MODULE.

...12 codes then any error codes. If you get a repair manual for that vehicle it will tell you how to perform these tests. 44 is a lean code throttle body gasket will fix this .code22 is tps sensor but ...

...charge starter good,replaced s-relay replaced ignition switch that was a pain! fuses all good no D-codes.turn key nothing! ignition lock good.running out of ideas.PLEASE HELP!!! did you flood if so ...

...Code 12 will always be in there, it means the engine isn't running. But every code that comes up after 12, write them down and post them. I'll tell you what they mean and we will go from there. what ...

...the aldl shows no codes not even code 12 You'll have to figure out if it is a fuel or ignition problem. check fuel pressure and look at the dist cap for burn marksalso check for vac ...

...code 12 which is one long flash followed by 2 short flashes. This code 12 means the diagnostic system is normal and will repeat itself continuously if there are no trouble codes. Otherwise, code 12 ...

...it will crank but it wont fire up i keep getting a code 12 what does that mean Code 12 is a all clear code this code on 95 and older. It should be at the beginning and the ending of the code ...

...code 12[all fine] car starts,ok, i believe when car is put ino gear[auto]box fails chip number16024824.cannot jump aldl socket [not responding]to extract code.car was driving perfect approx 30 mph ...

...find the problem(bad wire) or run any wire to the back side with 12 volts. Then you can read the codes. My guess is you have a bad coil or the catalytic converter is clogging up. Both produce the ...