I have a 1999 trans am, pressure at fuel rail is at 55psi needs to be min,of 85psi,ls1 engine. I change fuel pump same pressure readings, could it be the regulator on fuel rail? thanks bobby in gardendale
Model: trans am
CHANGE FUEL PUMP&FILTER. PRESSURE STILL LOW
what is your problem with the car?you have 55 PSI steady at the rail correct?why do you need 85 ?this is a 1999 firebird/trans am with a 5.7 engine is the 8th digit of the VIN number a G ?
it want start. 85psi is the min.required.
ok is the 8th digit of your VIN number for this car a G ?is this engine stock?
yes g is correct.yes the engine is stock.
the fuel PSI is 55 - 60 PSI. it is NOT 85 PSI you have proper fuel pressure for that engine! does the needle stay at 55 or drop off?
the pump spec say 85psi. the pressure drops slowly
no the PSI should be 55 - 60 PSI.you have enough for that engine to run
what going on -the car running one min and not the next? conflicting min pressure.the pump was for the car.if it not the fuel pump 85psi min-to115 max which serveral parts houses said this is the pump for your car.
no it is not.the pump PSI for your car should be 55 - 60 PSI
not satisfied.the car started couple of times. it acts like it not geting fuel.i"m going to do a dianostic test.all i can think of. I hope your right about pressure -this ls1 trans am confused in g-dale al.PS you sure it not the fuel rail reg?
if it was you would NOT have the 55 PSI.does it have spark? an injector pulse?could the cat converter be restricted or plugged?does it just bog down when you floor it?
I'm going double check spark. you seem sure about the fuel pressure. there was a small amout of hesatation last time I drove it
i am 100% sure on the PSI and more than 60 it will be too much PSI and actually push fuel past the inside pindles of the injectors flooding it out
OK, if it not the fuel. what control the spark the cpu? is theresomething in between? boy that fuel pump was bitch to change out up side at least it has a new one.
we need to see if we have spark next
Let me see if I have spark -I will get back to you where you can get paid.
no problem at all when your 100% satisfied then click accept at the bottom of the chat box
trash floating around in the REGULATOR .I WANT MAY 28$ BACK.fix it myself
I was charged when I was not satisfied. you told me it was not regulator on fuel rail. I told you pressure was 50 psi and falling you ignored. AS A UNSATISFIED CUSTOMER I WANT MY 28$ PUT BACK IN MY ACCOUNT.
I have advised justanswer for a refund for you