95 Bird Quits Running

[puppypounder]

Need Some Input, I have a 95 Trans Am, Lt1, 6 speed.93mm thottle body, bbk headers. and it has run fine up till now: It will start fine run for about 2 minutes then quit, then it is hard to restart, but it will resart, might do this a few times, but as soon as the service engine light comes on it runs fine, had it read and I have replaced TPS, Mass Air, and O2 sensors, and it still does the same thing, noticed the last time that when the service light comes on both cooling fans are running flat out, even when the engine is cold. it doesen't seem to matter if it is cold or warmed up it does it every time you start it.any help or suggestions would be gratefully accepted.

[1998 T/A]

fuel pump?? have you noticed any lack of power?

[puppypounder]

No lack of power, fuel pump test was good

[1998 T/A]

id have to say spark then? what are the codes you are throwing, go to autozone and they will scan for free.

[DTFHC77]

ive had the spark plug problem before, really annoying to fix lol

[Orcus79]

could be the temp sensor as that would be the only thing to cause the fans to come on asides the AC from being on. Best idea I can think of.

[puppypounder]

Thanks people, replaced the opti, seems to have cured the problem for now lol