2002 7.3 wont start
#13
It drops to .07, haven't seen it go any lower. My scanner won't read anything other than engine rpm and vehicle speeds.. I don't think this scanner was made for diesels, but I did a voltage check like you said, 0.14 volts when cranking. .07 volts when i stop. Seeing 5 volts from the two wires. I'm stumped on this one. Truck won't fire regardless if ICP is plugged in or not, I'm starting to think that maybe it is the IDM?
*Edit*
My bad, it does drop to .02 volts, It just takes a little while.
*Edit*
My bad, it does drop to .02 volts, It just takes a little while.
Last edited by PowerstrokeAdam; 01-13-2013 at 04:44 PM.
The following users liked this post:
PowerstrokeAdam (01-13-2013)
#17
The following users liked this post:
PowerstrokeAdam (01-14-2013)
#19
#20
Sure you could check resistance across the two pins on the ipr. Should be 5-20 ohms. Check the red wire for battery voltage while cranking with it plugged in. If you've got a meter that will read duty cycle you could check the duty cycle on the yellow/red wire. You could pull it and check for damage. The ipr isn't very expensive. If you see any damage just replace it.
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