Ok i have a 91 Firebird TPI 305 LB9 with an "F" engine code 5 speed, i can start the car and drive it (or let it idol) till it warms up then as soon as it warms up it dies and will not start, it will turn over but not start, some times it'll start (1 in 5 trys) it'll idol (kinda) but as soon as i give it gas it dies again. i checked the fuel pressure it tests at 42 lbs (normal i think), i checked the spark and it has spark too, i really need help.

i replaced the fuel filter and the map sensor too but it didn't fix any thing (don't know if that matters).

Thank you

it can only be fire or fuel . you checked the fire was it hot enough or was it week i have seen the control module go bad and will run till they get hot then eng shut down and with week fire it not run the coil can also do this but not as common hope i helped you if its not fire or fuel it would have me at wits end 2 good luck

happened to me last month..
last run before storage.. on my way home (stored it 7 hrs away)...
i died in rush hour toronto... my ignition module died on me...
once i replaced that... it runs awesome again...
so i kept it out of storage a few extra days then!

How do you tell if its hot enough or not? i used a light tester you put inbetween the spark plug and wire

Ignition module?
http://www.autozone.com/R,APP37162/v...ductDetail.htm

or spark module?
http://www.autozone.com/R,APP532966/...ductDetail.htm

Thanks i'll try that.


Well as of right now i haven't changed any thing besides cleaning the ground and trying a new ECM but the car still dies when it warms up i can restart it and it idles ok but when i try to rev it up it only boggs really bad make a little hollow pop noise from the engine and if i dont let go of the gas it dies completly. can not drive the car at all when it warms up but runs like a champ when you first start it cold in the morning.

i'm going to try the above ideas as soon as i can.

Any sudgestions with that update? thanks again

pull the injector terminals off one at a time and try to start it

if one of the injectors is going bad it will ground them all