is that fuel pressure gauge I see, that is failing at 0.39 seconds, but the throttle must gunned to WOT hard and fast to see the PSI rise 6psi. and it must or near.
this engine uses FPR, that sets fuel pressure by intake plenum vacuum.
FPR has return line. (bypasses fuel)
the charter is here, for oem FPR actions
30psi IDLE
36psi key off (on,off ,on , 3 times) no start. let the prime mode get to 36
at idle gun throttle and vacuum head to zero.
and see near 36psi. , 6psi more than idle. this 6psi overcomes 15psi atmospheric pressure. (sea level)
![[Image: reg-graph-mpi-g.jpg]](https://fixkick.com/INJECTORS/PUMP/reg-graph-mpi-g.jpg)
this engine uses FPR, that sets fuel pressure by intake plenum vacuum.
FPR has return line. (bypasses fuel)
the charter is here, for oem FPR actions
30psi IDLE
36psi key off (on,off ,on , 3 times) no start. let the prime mode get to 36
at idle gun throttle and vacuum head to zero.
and see near 36psi. , 6psi more than idle. this 6psi overcomes 15psi atmospheric pressure. (sea level)
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