[bstwilliams]

Ok. I made an OBD-1 jumper as per the haynes manual for a 94 Jeep Grand Cherokee Laredo 5.2 and something went haywire! The good news is that the check engine light no longer comes on - the bad; the fuel pump won't come on when the key is turned on and thus the jeep will not run. What is the deal?! What can I do to make it work again? Please help.

[TxGreaseMonkey]

Check all under hood and under dash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-t...tml#post252145

Normally, if the ECM is not working, the fuel pump won't either.

[bstwilliams]

Oh thank you so much! Apparently all you have to do to get the codes for 95 and earlier chrysler vehicles is cycle the ignition; on, off, on, off, and on one last time. My codes are 33 & 22. I will try to find out what they mean and let you know.

[bstwilliams]

33 is A/C clutch relay circuit open/short.
22 is coolant sensor voltage low.