rednekwizard

I tried to do some cross referencing and keep coming up with that ecm only fitting a 1998 grand cherokee


1998 Jeep Grand Cherokee Parts

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A1 Cardone 794512V Remanufactured Engine Control Module
A1 Cardone - 79-4512V, 794512V, A1794512V

A1 Cardone Engine Control Modules are designed to render superior performance. These powerful modules cautiously monitor RPM, timing, turbo boost pressure and fueling parameters. They in addition maximize power, torque and drivability. These feature a re-mapping system fo...
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heres the link also


http://frugalmechanic.com/auto-parts...control+module

ET JEEP

That is the worst looking PCM that I have seen. I think the problem may be solved.

Check this site out. I found it on a Jeep site and the poster was happy with their service. You may call and get info regarding your needs.

PCM

matt_101

okay, time to order the computer. lol

when i get the computer in i will post some pics of the jeep - you guys will be really surprised when you see how good of shape it is in.....you really wouldn't think that computer came out of that jeep.

anyways, here's hopin' the computer is my problem. certainly looks like it hahha.

JeepingDan

Wow! Where did you find that pcm? On the bottom of a lake?

Never saw anything like that
I'd have to agree thats gotta be the problem.

CrazyMacaw

You must have bought that thing from a fella named Rusty
If the PCM is that bad one can only image what other electrical issues that thing might be having..

matt_101

Thats the messed up thing - the rest of the jeep is rust free.

and we tested the harness - its fine.

jeff2285

This is bad bad bad bad VERY BAD
dont EVER do this anyone you could have just ruined that connector and caused more issues try back probing or get yourself a lead set

matt_101

I've tested more than one sensor like that without an issue. In fact the alldata test procedure asks you test the connector in that manner when you're troubleshooting the coil. The part of the lead which is inside the connector is not as big as the hole in the connector, so i don't see the issue.

Personally, I'm not a fan of jamming things in the back of an electrical connection.

matt_101

UPDATE:

she runs!!!!!!!!!!

the computer was the issue - we plugged the new one in and it roared to life. Excellent.


We took it wheelin' but i forgot the camera, i was sorta surprised with what i made it though.

dani9678

When you ordered the ECU, did it have to be programmed? I replaced the ECU in my uncle's Jeep with one that came out of a model of the same type but it still will not start. The gas gauge reads empty and the fuel light is on, the mpg computer just displays dashes, my analyzer will not communicate with the ECU and the fuel pump runs constantly without cycling off.