I agree 100% with your fuel system diagnosis and that was why I was trying to read codes. My research says that 1996 Fords above 8500 lbs are obd1. Mine is 9100. When I connect to the obd2 (Innova 5410 scanner) all I get is a "cannot connect to the computer " message. When I connect my ford OBD1 scanner to the obd1 connector I get nothing, and the vehicle does not go into the test mode described in the tester manual (Innova ford obd1 tester).
I have replaced the MAP and the TPS
I will check the fuses to see if I have a blown fuse, but you power the obd1 test directly from the battery. I should have checked continuity to the ground, but I didn't (yet). I need access to the computer. It seems that the transmission also is trying to start in second gear. I have to manually select first to get the van to move. I plan on finding a fuel pressure gauge to check fuel pressure, but I need codes.
I will reply again after I check the fuses and grounds, if I can find the grounds.
Monday, July 11th, 2022 AT 5:33 PM