Fuel psi
#1
TECH Enthusiast
Thread Starter
Fuel psi
when i start my truck i see 58psi after a few minutes
it drops to 44psi, is the pressure controlled mechanically
or by elect ? PCM ? or a FPR ?
this is a returnless system.
it drops to 44psi, is the pressure controlled mechanically
or by elect ? PCM ? or a FPR ?
this is a returnless system.
#2
On The Tree
#4
On The Tree
A boost-a-pump can apparently be wired in after the FPCM to increase voltage to the fuel pump as the FPCM controls the pump via pwm and will keep reducing voltage to the pump once it sees fuel pressure rising beyond set levels. I just converted to a return system and did away with the FPCM.