Replacement PCM for 04 Rubicon?

OP
imactj2004

imactj2004

TJ Enthusiast
Supporting Member
Joined
Nov 7, 2020
Messages
299
Location
Bay Area
wellll....good question.

Long story short: I replaced all four 02 sensors with recommend NTK's per this post, but I still can't get the Heater circuit test to run so I can't pass smog here in california. O2 connections are well grounded and good with power so only thing left is PCM...yes?
 

John Cooper

TJ Expert
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Joined
Jun 10, 2020
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3,195
Location
Bryant, AL.
He handles all years, 05-06 just seem to have a higher failure rate.

Mine ran better than stock with his, @John Cooper has it now, he can testify.

I sure am happy with it, not sure what it ran like before replacing it, but it's great running now!!!!

Mark is a super nice guy and is always willing to talk with you!!