Hey guys. Finally got my truck out on the road this am for some cruising datalogs. I had Eric Korn work with me over the winter to get my truck idling.
Base pressure was 40 upon beginning my drive. On my initial drive I ran into a problem a few miles out. All driving today was light throttle, getting a 1500 rpm constant cruise log. AFR was showing pegged at 17.0 lean and fuel pressure was 19psi. I had the base pressure at 40psi during initial tuning over the winter, nothing changed since then. Inwas working on my suspension all winter. checked both fuses for the pumps, cycled each pump individually with the key. Both supply the same psi.
Fuel level in the tank was low fyi
Both pumps get power directly from battery and have 10ga wiring. Both have their own set of wires and relay for power and ground.
I re-adjusted the base pressure to 40 and again tested both pumps. They both supply 29psi koeo & 40 koer.
Has anybody seen a fpr fail and cause a 19psi drop in pressure?
Fuel system:
-8 feed
-6 return
Dual 465 pumps
Aeromotive regulator #13101
Id1300 injectors
Division x fuel filter
Pumps and regulator have 1k miles of use. Injectors are brand new.
Base pressure was 40 upon beginning my drive. On my initial drive I ran into a problem a few miles out. All driving today was light throttle, getting a 1500 rpm constant cruise log. AFR was showing pegged at 17.0 lean and fuel pressure was 19psi. I had the base pressure at 40psi during initial tuning over the winter, nothing changed since then. Inwas working on my suspension all winter. checked both fuses for the pumps, cycled each pump individually with the key. Both supply the same psi.
Fuel level in the tank was low fyi
Both pumps get power directly from battery and have 10ga wiring. Both have their own set of wires and relay for power and ground.
I re-adjusted the base pressure to 40 and again tested both pumps. They both supply 29psi koeo & 40 koer.
Has anybody seen a fpr fail and cause a 19psi drop in pressure?
Fuel system:
-8 feed
-6 return
Dual 465 pumps
Aeromotive regulator #13101
Id1300 injectors
Division x fuel filter
Pumps and regulator have 1k miles of use. Injectors are brand new.