fuel pump question
#1
fuel pump question
alright so when i turn my key on no crank what should my fuel pressure be when its done priming? i know idle is somewhere between 41-47 psi but when i prime mine it goes to about 10-15psi and the pump sounds really weak. i also have long crank times unless i prime it a few times.
jeremy
jeremy
#2
forgot to mention that when i do prime it and it gets to 40 psi it will leak down at a pretty good fast rate. it leaks all the way down to 0 psi within 30 seconds.. normal with the airomotive fpr??
#3
#5
If your fuel injectors was leaking that much fuel, it would be quite rich on start up id imagin, black smoke blowing out rich.
#6
alright so when i turn my key on no crank what should my fuel pressure be when its done priming? i know idle is somewhere between 41-47 psi but when i prime mine it goes to about 10-15psi and the pump sounds really weak. i also have long crank times unless i prime it a few times.
jeremy
jeremy
Does it stay at about 36-38psi at idle when it finally starts? Will only run 41-47psi at idle with the vacuum compensation line off.
The Aeromotive LT1 AFPR's have shown an excessively high failure rate.
#8
at idle with vacuum line hooked up it hangs around 40 psi and with it removed it will jump to about 44-45.
this afpr came off my parts car which was a 94 auto z28 and it was running fine with it on. never threw a gauge on it but woudnt assume it be running to rich.
just put a new one on about a month ago.(last one looked like someone shiit in it 130,000 miles might do that)
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dbusch22
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10-31-2016 11:09 AM