MySCRocket1203
Registered User
hey guys im reviving an old thread cuz im still stuck ive been scouring the forunms but i seem to keep filling up my check list and nothign new has struck me yet im having taht old car bux when its heated thing going on bad mileage car dies at idle in drive and bux and bogs down miserably under boost
its a 1990 auto the anniversary package (wich i know means nothign as far as engine goes ahah)
heres what ive done. ive replaced the fuel pressure regulator i hav erebuilt the engine replaced the dis, iac, tps, coil pack, cam sensor, cranks sensor, fuel pressure regulator, temp sensor, o2 sensors, and fuel pump & filter
the only thing left to replace are knock sensor, eec, map sensor, act sensor, pcv valve, mafs, and wiring harness.
now i read that when the egine is cold it runs rich, so why does it run fine cold and not when its hot? what problem does the extra fuel coever up?
could it be my injectors, or a horrendous vaccum leak? im getting 20 vac with my car at 30 mph and my foot off the gas, i get about 17 in gear at a stop light and about 15 in park, i have a 2.5-3-2.5 exhasut with the kooks heders and i get about 11psi when the car lets me fully throttle. ive replaced the plugs and wires at the rebuld 2k a go. and when i isntalled the headers i replaced the busted ugly acdelcos that the guys rebuilt my engine put in (as a side note never go see pacific coast motor supply) with some motocrafts like what i had in before the car started running sh*tty.
none of this changed anything. my ic tubes are properly tqed and tahts the only place i could really imagine having anything likea bad leak all the vac lines behind the plenums appear to be serviceable. i need the experts out there cuz im lost the stealership said it was laternator but its pushing proper volts. so i dont know what to say about all this. have i missed anything. what more should i do to fix this
its a 1990 auto the anniversary package (wich i know means nothign as far as engine goes ahah)
heres what ive done. ive replaced the fuel pressure regulator i hav erebuilt the engine replaced the dis, iac, tps, coil pack, cam sensor, cranks sensor, fuel pressure regulator, temp sensor, o2 sensors, and fuel pump & filter
the only thing left to replace are knock sensor, eec, map sensor, act sensor, pcv valve, mafs, and wiring harness.
now i read that when the egine is cold it runs rich, so why does it run fine cold and not when its hot? what problem does the extra fuel coever up?
could it be my injectors, or a horrendous vaccum leak? im getting 20 vac with my car at 30 mph and my foot off the gas, i get about 17 in gear at a stop light and about 15 in park, i have a 2.5-3-2.5 exhasut with the kooks heders and i get about 11psi when the car lets me fully throttle. ive replaced the plugs and wires at the rebuld 2k a go. and when i isntalled the headers i replaced the busted ugly acdelcos that the guys rebuilt my engine put in (as a side note never go see pacific coast motor supply) with some motocrafts like what i had in before the car started running sh*tty.
none of this changed anything. my ic tubes are properly tqed and tahts the only place i could really imagine having anything likea bad leak all the vac lines behind the plenums appear to be serviceable. i need the experts out there cuz im lost the stealership said it was laternator but its pushing proper volts. so i dont know what to say about all this. have i missed anything. what more should i do to fix this