I have a 92 cummins with auto overdrive. It just went out! Are the 92 and 93 ecm interchangeable? Or what years will fit the 92? In major need to fix.

 

Have you checked the throttle position sensor?????

 

Yes, I tracked it down to the ecm. The third pin from top right (power supply) is grownding out the wiring and blowing my fuses. If I unplug the power supply wire it will turn over and start. I haven't attempted to drive it.

 

92 and 93 PCM interchange as long as it is a auto PCM.