Hi All,
I have a 91 YJ that currently has a 4” lift, 33” tires. It came with a 2,5L,Ax-15 and NP231 running 4:11 gears in the Dana 30 front and 35 rear.
i want to swap the engine and tranny out with a 4L i6 and AX15 (reusing the Np231). The engine I have is out of a 97 TJ. I understand the engine mounts will change. Like my exhaust will change as well obviously.i have the powertrain wiring harness for the 97 (cam pos sensor, crank position sensor, speedo, etc.).
The question is; will the PCM /ECM from the 97 TJ work with the other two body harnesses? I know the TJ uses a digital 2 wire CCD to run all the gauges on the dashboard, pretty sure the 91 does not use that same technology. OR do I need a PCM from a YJ series jeep?
the YJ is 30 years old, so no emissions inspections are required, thankfully.
Would appreciate some input from the mechanical gurus on this forum.
thank you,
Mike
I have a 91 YJ that currently has a 4” lift, 33” tires. It came with a 2,5L,Ax-15 and NP231 running 4:11 gears in the Dana 30 front and 35 rear.
i want to swap the engine and tranny out with a 4L i6 and AX15 (reusing the Np231). The engine I have is out of a 97 TJ. I understand the engine mounts will change. Like my exhaust will change as well obviously.i have the powertrain wiring harness for the 97 (cam pos sensor, crank position sensor, speedo, etc.).
The question is; will the PCM /ECM from the 97 TJ work with the other two body harnesses? I know the TJ uses a digital 2 wire CCD to run all the gauges on the dashboard, pretty sure the 91 does not use that same technology. OR do I need a PCM from a YJ series jeep?
the YJ is 30 years old, so no emissions inspections are required, thankfully.
Would appreciate some input from the mechanical gurus on this forum.
thank you,
Mike