reeser Posted December 25, 2009 Posted December 25, 2009 wanted ecm from a 91-94 2.5 4cylinder manual transmission cherokee or comanche if anyone has one please let me know thanks
reeser Posted January 6, 2010 Author Posted January 6, 2010 ttt i was thinking this would be hard to find ....if anyone has one though please let me know thanks
reeser Posted April 21, 2010 Author Posted April 21, 2010 still looking i had it running but now its not getting fuel new fuel pump , injectors, and filter and regulator, it was arcing i believe at the ignition where we replaced the wire so I'm think maybe the ecm is gone but the cel light comes on
pingpong Posted April 22, 2010 Posted April 22, 2010 I have a complete 2.5 TBI wiring harness out of a 87 engine bay. Not sure if you are looking for the MPFI or the tbi setup
reeser Posted April 22, 2010 Author Posted April 22, 2010 i jus wanna try another ecm ...it runs with carb cleaner sprayed in it but it is not getting fuel still it is a 91 so it is a mpi setup
Wildman Posted May 8, 2010 Posted May 8, 2010 I don't have one........But.......you could use a 2.5 auto ECU to find out if that's your problem. There were not alot of 2.5 in the era either. What you could try.......is run a separate ground wire from the ECU mounting plate all the way to the negative post on the battery, I've had a XJ with the same "no fuel pump/pressure" and it was the separate ground wire that's on the plate to the negative stud on the engine that went bad. Also........you can pull the ECU, pull the 4 torx screws out, and pull the circuit board out, and visually inspect it to see if you have any burnt resistors or bad traces on the board from a dead short.
Recommended Posts