1995 S10 2.2L Manual Transmission, will run on carbarator cleaner.
(ICM has been replaced)
Have spark and fuel pressure. I get code 54, Low voltage at the fuel pump relay. There is 12V at the relay during prime and cranking when oil pressure is detected.
I do not have any voltage on circuit 120 (PCM terminal B2). Continuity is good from oil pressure switch to PCM and ICM to PCM. It seems I have have a broken connection between the PCM terminal B2 to the tie point into the fuel pump. If you agree with this, do you know where this tie point is located?