Reel Poor
Vice Admiral
- Joined
- Jan 29, 2005
- Messages
- 5,522
5.7 GXI-G
If I just had the EFI wiring diagram. My fuel pump and ignition relays will not activate because there is no ground present for the relay coils. Positive voltage is present at the relays coil terminals with the key on. I'll assume (but most likely) the ground circuit is triggered to close by the ECU. I would like to know pin location @ the ECU for this circuit. I would also like to have the earth/battery ground source pin locations @ ECU. FYI, a known working ECU does not correct the problem. I am expecting to find a faulty wire or connector somewhere because all engine grounds are (have been) checked and cleaned. The engine died while underway.
With all that said, access to a wiring diagram would be the best information.
If I just had the EFI wiring diagram. My fuel pump and ignition relays will not activate because there is no ground present for the relay coils. Positive voltage is present at the relays coil terminals with the key on. I'll assume (but most likely) the ground circuit is triggered to close by the ECU. I would like to know pin location @ the ECU for this circuit. I would also like to have the earth/battery ground source pin locations @ ECU. FYI, a known working ECU does not correct the problem. I am expecting to find a faulty wire or connector somewhere because all engine grounds are (have been) checked and cleaned. The engine died while underway.
With all that said, access to a wiring diagram would be the best information.
