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1993 Jeep YJ Repair Question


Topics covered: Fuel pump, Four wheel drive, Fuse.
Mileage: No information provided.

Asked on August 30, 2010

1993 Jeep YJ 1993 yj wont start no power to fuel pump?

Replied on September 14, 2010

What we're looking for here is a 2 second pulse of "on" time. Your going to have to run all the same checks on the ASD relay and see if it is acting the same way.

Tiny Answered by Wrenchtech (expert)
14,757 answers provided
Replied on September 15, 2010

Ran the same test on the ASD relay. Relay will pull in and output will light up. However I still have no response when I turn on the key-nothing.

Tiny Response from yjjeep
1 question asked
Replied on September 15, 2010

I am giving you the pinout diagram for the PCM. I want ti to verify all the power or ground inputs to make sure they are working. It's starting to look like a bad ECM but I don't want you to buy one without someone else verifying it.


http://i602.photobucket.com/albums/tt106/Desi501/ECMpinout93Wrangler4.jpg

Tiny Answered by Wrenchtech (expert)
14,757 answers provided