dies when wArm usually won't start when warm

[redfire]

93 z28 car runs great until warm then stalls, it will fire back up for a sec. everyone inawhile until cool?

[Fbomb]

O2 sensors?

[redfire]

I tried that

I tried that already, could it be the vats?

[my95z28]

100% not vats. VATS wouldn't let the vehicle start at all. It won't even crank.

[Lucky SOB]

Dare I say... the opti?

[redfire]

would Rpm's jump?

I don't know much about opti at all but would rpm's jump around before stall if it was the opti! I hope it's not. any other info ??

[squareandcompass]

Tps?

[kyleozzie]

i say... the dreadful opti.

[Gaspo]

did you try fuel filter? check fuel pressure on rail. maybe a coolant temp sensor?

[redfire]

fixed!!!

it wAs the opti went with Delphi running great also did the crank seal anyone recommend any inexpensive performance mods/bolt on"s

[bri2203]

it wAs the opti went with Delphi running great also did the crank seal anyone recommend any inexpensive performance mods/bolt on"s

ahh another 93 owner! before you do any modifications you should make sure the car runs well, some times a tune up can be like a performance mod.
Most people agree headers are a good mod performance wise per dollar, also a cold air intake/LS1 swap might not be a bad idea.

[MunsterZ28]

ahh another 93 owner! before you do any modifications you should make sure the car runs well, some times a tune up can be like a performance mod.
Most people agree headers are a good mod performance wise per dollar, also a cold air intake/LS1 swap might not be a bad idea.

like Brian said, headers and 3.73 gears in my buddies 93 and that car ran like a freak. that was also behind an auto trans. idk what your working with.

[bri2203]

like Brian said, headers and 3.73 gears in my buddies 93 and that car ran like a freak. that was also behind an auto trans. idk what your working with.

Thats because 93s had a different intake manifold and different alternator! bank injection = factory freak lol

[MunsterZ28]

Thats because 93s had a different intake manifold and different alternator! bank injection = factory freak lol

lol i honestly cant explain it. it only ran a 13.5 at the track on street tires but man i dont think i saw that thing loose. had to be that and speed density lol