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need help please!

1500 Views 20 Replies 11 Participants Last post by  smoking rr
Ok, I have a 90 FSB with a 302 and an AOD. I have been having problems when I have been driving after a while it will start loosing power like it is running out of gas or has low fuel pressure. So I did some testing and sure enough not enough pressure. So in went a new fuel fitter and fuel pressure regulator. Same results so in goes a new fuel pump. Seems to be better, pressure is where it should be. yet after driving for a while (some times I get 50 miles, some times I get 3 miles) it does the same thing. Usually I can pull over, turn the truck off, wait like 30 seconds and start it again and I will get another 3 or 4 miles or so and I will do it again. Just to add in it has new plugs, wires, cap, rotor, coil, and the trimming was just checked and is right. Please chime in with some ideas. It is driving me nuts!!
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You should try to diagnose and test first for resistance, the procedure is in the Haynes...................basically it's about signals to and from etc.
PIP = profile igniton pickup sensor or Hall Effect and is located on the distributor shaft inside so you have to pull the diisy out to replace the sensor by removing the dissy gear and roll pin, the sensor has a collar which slides on /off the shaft for R&R.

IIRC Napa has a Cardone dissy with TFI Module = thick film integrated and PIP for around $130.00 out the door with warranty...........................TFI Module is located directly on the side of the dissy with an ignition connector from the harness..

EVP is probably the EGR sensor on top of the EGR Valve so you'll need to test for resistance, Haynes etc.

Not sure about the last one , mine is an 86 BKO.......................

Good Luck ~ :thumbup
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