Akula69 Posted December 14, 2009 Share Posted December 14, 2009 Picked up another MJ and trying to decide whether to rebuild or not. Looking for a 1987 MJ engine bay harness (unfortunately, the one with the C101 connector). Also, a ECM for the same year on a 4.0L with AW4 tranny. Link to comment Share on other sites More sharing options...
ICEBOX Posted December 15, 2009 Share Posted December 15, 2009 what is the c101 ?? Link to comment Share on other sites More sharing options...
mjeff87 Posted December 15, 2009 Share Posted December 15, 2009 so long as you stay Renix, you don't need to keep the C101. I'm running an 89 harness (C101 eliminated) and it works just fine..... and XJ/MJ engine-side harnesses are the same, so don't limit your search to just an MJ harness. It's the in-cab harness that's a bit different between the two. Jeff Link to comment Share on other sites More sharing options...
ICEBOX Posted December 15, 2009 Share Posted December 15, 2009 i have a parts XJ here at the house . Link to comment Share on other sites More sharing options...
Akula69 Posted December 15, 2009 Author Share Posted December 15, 2009 so long as you stay Renix, you don't need to keep the C101. I'm running an 89 harness (C101 eliminated) and it works just fine..... and XJ/MJ engine-side harnesses are the same, so don't limit your search to just an MJ harness. It's the in-cab harness that's a bit different between the two. Jeff Yeah, My son's is an 89 and I recently replaced the harness in it...but...what about the other half of the C101, and the hole in the firewall? Did you replace the engine bay and the interior harness at the same time? Thanks Jake i have a parts XJ here at the house . The C101 connector was a short lived mistake that AMC did on the 86-87 year trucks. It is a two part connector that plugs in at the top right of the firewall (near the master cylinder). It was officially called the 'Engine Harness Disconnect'. What year is your parts XJ? if it's an 89 we could probably make some business 8) Link to comment Share on other sites More sharing options...
ICEBOX Posted December 15, 2009 Share Posted December 15, 2009 OIC. yeah my sons XJ has that . always wondered what that rat nest was . Ya learn something new every day :thumbsup: Link to comment Share on other sites More sharing options...
mjeff87 Posted December 15, 2009 Share Posted December 15, 2009 both harnesses (the C101 version and the not-) go thru the same hole in the firewall. The only thing not being used now on mine is the little bracket that the C101 used to be attached to. Basically, the C101 is just a big connector that makes that single part of the harness two pieces instead of one. I kept my 87 (2.5) interior harness intact, and just plugged the 89 engine harness into the bulkhead. Jeff Link to comment Share on other sites More sharing options...
Akula69 Posted December 15, 2009 Author Share Posted December 15, 2009 Gotcha. Thanks! Now I need a RENIX engine bay harness preferably an 89 but can use 86-89. Link to comment Share on other sites More sharing options...
LoTGoD Posted December 15, 2009 Share Posted December 15, 2009 Gotcha. Thanks! Now I need a RENIX engine bay harness preferably an 89 but can use 86-89. I have one from an 89 :cheers: Don't think I'll need it now that I have my bugs worked out. One small issue with it...the main red wire for the headlight harness has corroded off the connector. If you are electrically inclined, you should be able to fix it. Shoot me a PM and we can discuss it. Link to comment Share on other sites More sharing options...
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