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Found 7 results

  1. So I have a 88 mj that I bought a 4.6 stroker an ax15 and a 231 tcase the jeep was originally a 2.5 manual 2wd it’s 4x4 now but previous owner chopped the harness at firewall what is my best option wiring harness wise I have a full harness from a 99 same year as motor but is it comparable with the interior harness? And my second question is what are you guys doing for Ecus and can you buy a ecu and harness kit?
  2. In replacing the ECU on my 89 - 4ltr - 5 speed, do the numbers off of a replacement have to match what is in the unit? If not what units will interchange?
  3. I am in the process of replacing a rocker panel. The battery is out of the truck already. I have already cut out the rot and am getting ready to start tacking. Do i need to unplug the ECU? I don't want to fry that thing. I will probably do it anyways. but would like to hear what other people say about it.
  4. 87MJTIM

    Score!

    Pulled some parts from a 90 XJ, 4.0, 5spd Heater line vacuum elimination, battery tray, ECU and a hood prop rod support (the little part between the ECU and batt tray) ECU
  5. Hello club, Prospecting a 87 4cyl standard mj that's priced right and in good shape,also a friend of mine has a really nice 01 xj4.0 auto with low miles and a damaged rear end, but everything is in good shape to swap over to the mj, i was wondering if theres any problems or thing to know when swapping everything from an xj to an mj i plan on taking everything including motor,axles,drivetrain, front end body swap,full interior, ecu wiring ect. Just looking for some tips before i make the purchases. Thanks anyone willing to give me some imput
  6. Long time listener, first time caller! Ive got a lot to explain, so ill get right to the point: 87 Comanche HO Swap Ran after swap fine for a month Problem: A short in the dash powerside wiring (the small orange/black wire) caused a no start problem The dash light wiring has been repaired Symptoms: No spark from coil No injector pulse Fuel pump primes but not running during cranking Intermittent Voltage gauge operation Tachometer not working Diagnostics: CPS is newish and tests at 235 ohms and puts out .5v ac current during cranking 5v at tps and map TPS tests puts out 0.8v MAP tests good O2 tests at roughly 400 ohms Both temp sensors test good Replaced coil, ICM, coil lead 12v and good ground at ICM 3 prong plug Ground at ICM 2 prong plug (not sure if this is supposed to be, the wire is yellow) 12v to coil from ICM Opened up ECU, looks good and all testable components tested good The four relays behind the battery all test good, same with the relay on the drivers side engine bay Cleaned C101 connector (was filled with goopy sticky black stuff) Cleaned plug going to fuse box 9 filled with same stuff) Checked the CPS resistance at ECU pins D1 and C1, came back same as at CPS Checked all fuses and fusable links Cleaned ground strap and connections at the starter relay I thought I had no power at ECU but I think I am testing the wrong connectors (D10 and C11) my wiring diagram seems to be wrong, what pins should i check for power at? I am honestly stumped. Any help would be greatly appreciated, Ive read through nearly every forum I can find
  7. I am in desperate need of an ecu, full engine harness, and fuse panel for an 87 4.0L, 5speed, 4wd. If anyone is doing a part out on one of these PLEASE let me know. a rat ate through my harness, so my dog killed him, my clutch master blew out and spit all its fluid into the fuse panel...... lots of corrosion there, and then my ecu took a dump. HELLLLLP. LOL
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