1998 TJ LS Swap Wiring Demo Questions - Jeep PCM - Pirate4x4.Com : 4x4 and Off-Road Forum
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Old 04-25-2019, 09:26 PM   #1 (permalink)
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1998 TJ LS Swap Wiring Demo Questions - Jeep PCM

Getting ready to tackle the wiring on my 98 TJ. I am running a 5.3 with the Howell harness and CPU, all autometer gauges and senders. No jeep gauges.

I will be demoing the C1, C2, and C3, PCM connectors and do not want to remove something I shouldn't have. Any info appreciated.

PCM C# pinout:

Injector 1 driver (ELIMINATE)

injector 3 driver (ELIMINATE)

Injector 5 driver (ELIMINATE)

Generator field driver (ELIMINATE, Howell harness will have alternator wiring)

TCC solenoid control (ELIMINATE, Howell harness will have trans 4L60 wiring)

Injector 6 driver (ELIMINATE)

Injector 2 driver (ELIMINATE)

Injector 4 driver (ELIMINATE)

Oil pressure sensor signal (Eliminate, Howell harness will provide CEL using chevy sensor, New wire from autometer sender in oil pan to new gauge)

VSS signal (Eliminate Howell will use VSS in Novak adapter for chevy CPU. Autometer gauge will run from SYE VSS wiring)

5 volt supply ---Not sure if I need this??

I will right up the other 2 PCM modules tomorrow. Hopefully this will help some other as well!

Please post any input, thanks, Aaron!!
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