With crappy batteries it's possible the FICM was damaged. Need to check it.
It's an M12x1.5 fitting. Look for a M12x1.5 to 1/8"NPT Female transition fitting.Why everything on this truck so difficult 3 fuel pressure testers and none fit. Everything is expensive you might think with all the same failures the parts price would go down. Is there a wat to test the ICP voltage or ohm or just a test procedure. if i unplug tie ICP does it need to run for a bit for the computer to go into default?