Has anyone checked base fuel pressure with a gauge ?
It was tested at a shop during one its episodes.. thy ttried to tell me it need fuel pump... not fuel pump or it wouldn't keep running once cooled off... did change fuel filter and fuel line.. went to change fuel pump relay when old ecm still in and it kept running... should Itry and change relay now that new ecm in....
You need to know what base fuel pressure is, and if it stays the same or drops off. It would be interesting to know how the pump kept running with the pump relay out of the circuit. The computer only grounds the pump relay.
The promb is now won't stay running... since replaced ecm... it starts and stalls right out..... doesn't it have to run to check fuel pressure....
No. You hook up the gauge and check pressure before and after cranking the engine. You should have some pressure before, then a min of 35psi when you turn the key on and beyond.
Thx... I will try and.see wht happens...gotta get y hands on one...
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