Fuel problem Need help.
Fuel problem Need help. Ok, so I have a 1998 trans am. have an STS single turbo kit on it. A while back i had some problems, changed injectors, etc. well had a few idling problems. car would start but miss.
I was working on a tune. and finally got my 2 bar MAP sensor in. uploaded the new 2 bar opperating system. and then once i'd turn the car on the fuel pump would run for abotu 1 second then shut off. car would not start but after a few cycles of letting the pump attempt to prime it would fire.
so, replaced the fuel pump with a walbro 255... this pump also just wants to come on for one second or less. not the full 3 seconds or so it usually takes to get up to pressure and shut off like the normal cycle does when the key is turned on.
I have checked the relay. it seems to be fine. sent the tune to HP tuners they looked at it. nothing.
Any ideas? ... Thanks guys. I'm kind of lost and depressed here. had the car apart all summer now and it's driving me nuts.
I was working on a tune. and finally got my 2 bar MAP sensor in. uploaded the new 2 bar opperating system. and then once i'd turn the car on the fuel pump would run for abotu 1 second then shut off. car would not start but after a few cycles of letting the pump attempt to prime it would fire.
so, replaced the fuel pump with a walbro 255... this pump also just wants to come on for one second or less. not the full 3 seconds or so it usually takes to get up to pressure and shut off like the normal cycle does when the key is turned on.
I have checked the relay. it seems to be fine. sent the tune to HP tuners they looked at it. nothing.
Any ideas? ... Thanks guys. I'm kind of lost and depressed here. had the car apart all summer now and it's driving me nuts.
as for "everything else" all of the normal electrical stuff seems fine no extra blinks. the ding is loud etc.
also the oil pump on the STS kit only stays on as long as the fuel pump, not sure if that would be helpful or not.
also the oil pump on the STS kit only stays on as long as the fuel pump, not sure if that would be helpful or not.
