87,88,89,90 Engine Wiring Schematic

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Nov 29, 2011 | 08:40 PM

DFlintstone

Thread Starter

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

87,88,89,90 Engine Wiring Schematic

Took me so long to find I though I'd post it.

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87,88,89,90 Engine Wiring Schematic-87-90-engine-schematic.jpg

Sep 12, 2025 | 10:56 PM

LonewolfeAnglerAz

Newbie

Joined: Sep 2025

Posts: 1

Likes: 0

Thanks for sharing this where did you happen to find this diagram? I’m going through all my wiring and the more diagrams I can get my hands on the better!

Sep 13, 2025 | 08:29 PM

lawsoncl

CF Veteran

Joined: Dec 2017

Posts: 4,367

Likes: 1,215

Year: 1989

Model: Comanche (MJ)

Engine: 4.0

You can find the factory manual and diagrams at https://cruiser54.com/?page_id=365, along with a wealth of other great Renix era Cherokee info.

Sep 15, 2025 | 10:58 PM

ijeeep

Senior Member

Joined: Oct 2019

Posts: 789

Likes: 234

From: Current XJ is

Year: 95

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by lawsoncl

You can find the factory manual and diagrams at https://cruiser54.com/?page_id=365, along with a wealth of other great Renix era Cherokee info.

Cruisers site is solid gold. Copy and save it to an external drive.

It's all useful info.

His bit about adjusting ignition timing is how we turn standard Crank Position Sensors into High Altitude CPS
The factory supply of those dried up over twenty years ago. The aftermarket never offered one. It works for post Renix.