MJ Comanche Tech. Stock & Modified. MJ (86-92)
All discussion regarding the Jeep Comanche, the pickup truck related to the Cherokee platform.

Who wants more power out of their 87 or 88?

Old 04-12-2014, 02:44 AM
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I'm gonna have to try this with my 88. Thanks, cruiser
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Old 04-12-2014, 07:15 AM
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Originally Posted by 884x4 View Post
I'm gonna have to try this with my 88. Thanks, cruiser
You'll like it.
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Old 04-12-2014, 08:06 AM
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Originally Posted by cruiser54 View Post
Frickin spammer!!

Auto or manual BTW? LOL!!!

Got one from an 89 5spd/4.0.
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Old 04-12-2014, 08:09 AM
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Originally Posted by Thexjfiles View Post
Got one from an 89 5spd/4.0.
Someone should want it.

I'm gonna take this opportunity to clarify something.

You can use the ECU from an auto trans equipped vehicle in either an auto or manual trans one.

I've used the manual ones in an auto and there are some idle quality issues at a stop in gear.
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Old 04-12-2014, 01:22 PM
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This guy knows a empty spot for that ecu
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Old 04-12-2014, 03:02 PM
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My buddy has a scrap 92 xj auto 4.0 2wd. Would I be able to swap the ecu from that to my 88 mj 4.0 auto 4x4 and get the power gain?
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Old 04-12-2014, 04:00 PM
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Originally Posted by zebvance View Post
My buddy has a scrap 92 xj auto 4.0 2wd. Would I be able to swap the ecu from that to my 88 mj 4.0 auto 4x4 and get the power gain?
No. Must be 89 or 90 only.

Do you have manual or auto trans?
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Old 04-13-2014, 12:03 AM
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Auto
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Old 04-13-2014, 07:37 AM
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Originally Posted by zebvance View Post
Auto
Need to get one out of an auto then. I've done one with a manual eCU in an auto equipped Jeep and the idle was not good in gear.
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Old 04-15-2014, 08:04 AM
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So have any of you slowpokes done this yet?
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Old 04-15-2014, 08:53 AM
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Originally Posted by cruiser54 View Post
So have any of you slowpokes done this yet?
I plan on it just need to find the right ECU first
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Old 04-16-2014, 08:45 AM
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Hey man im on vacation lol. The mjs in idaho and im in D.C. till the 21st so when i get back ITS ON lol
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Old 04-16-2014, 01:44 PM
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Originally Posted by zebvance View Post
I plan on it just need to find the right ECU first
I have one.
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Old 04-16-2014, 03:11 PM
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Originally Posted by cruiser54 View Post
I have one.
Pm me with your price if you don't mind.
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Old 04-22-2014, 11:21 AM
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I know this is the Commanche section but am assuming this applies to Cherokees as well. I have an 88 and would love a bit more power.. I assume a Commanche ECU will work on a Cherokee?

I'll be scouring the local yard for a 89-90 ECU now! Thanks!
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