I am working on my Father In Law's '93 Plus 8 back on the road. It has been laid up for about 2 years and has a fuel pump issue. The pump does not kick on when the key is turned, and thus the car does not start. I was able to get the car started by jumping the fuel pump directly to the battery which pressured fuel in the system. I took off the jumpers and the car started right up and sounded great and it ran for about 5-10 seconds until the pressurized fuel was burned up. Since it starts the only issue is getting that fuel pump running. I'm ready to get this beauty back on the road.
We checked the fuses (including the inline one next to fuel pump, the two behind the glove box, and other fuses in the main fuse bus), we tested the inertia/crash switch (removed and tested with ohm meter) and we replaced the 2 Bosch fuel pump and ECU relays behind the glove box with Bosch AFU2913L/986AH0602 relays (originally Bosch 0332014112) and still no go.
Does anyone have any thoughts on other things to check or possible loose connections somewhere? I've read the inerita switch wiring can sometimes go bad. Anyone have experience with that and how did they diagnose and resolve?
Is it a bad idea to disconnect the fuel pump wires and put in a temporary circuit with an inline fuse from the battery to the fuel pump with a on/off switch to run the car for 5 minutes because I'm itching to take it for a quick spin?
