Oh no, not this shit again......1988 2.5 YJ to 1997 XJ 4.0 - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 03-09-2019, 01:32 PM   #1 (permalink)
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Ya, do a 5.3/6.0 swap...Im wasting time...got it. Now that, that is out of the way.... 🙂

I aquired a FREE 4.0l/AX15/231 With harness and computer from a 97 XJ. I can handle the motor mount moving/welding/fab junk no problem, but my wiring skills....eh not the best when dealing with computers.

I have a stripped bare frame, the new driveline, just trying to fill in the wiring details to make it work. I am not concerned with CEL's as an 88 is only a visual safety check for inspections. Just need it to fire/run.

Do I need to run a custom made harness or can my harness from the XJ be stripped down to work?

Thanks.

Last edited by trailduster76; 03-09-2019 at 01:33 PM.
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Old 03-09-2019, 01:34 PM   #2 (permalink)
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I have searched a bit, but find mostly TJ 2.5l swaps, or like year 2.5-4.0l swaps. Havent found info on a obd1 too obd II swap.
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Old 03-10-2019, 09:45 AM   #3 (permalink)
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Get the pin out for the ECU (computer) you're using then strip out the crap not needed and apply power/ground to the appropriate wires (which a pin out would tell you) and you'll be good to go!
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