Hypertech Programmer
JK Enthusiast
Joined: Apr 2008
Posts: 305
Likes: 0
From: Austin, TX
Just installed the Hypertech program on my JK this morning. I ended up pulling 3 fuses to the satellite radio and clock (M13 was the extra, from what I remember).
Until I pulled the M13 fuse, I kept getting "error code 7E- wormcode failure" which, according to the Hypertech customer service guy, was a communication error meaning there was something drawing power (radio, charger, etc). I figured it to be the clock.
It took about fifteen minutes for the computer to read the JK, then another ten or so to write the files back.
I drove it around the neighborhood to make sure it ran fine, and I'll take it out on the highway tomorrow. My JK sounded quieter at idle and appeared to "lug" less at lower gears when I shifted.
Until I pulled the M13 fuse, I kept getting "error code 7E- wormcode failure" which, according to the Hypertech customer service guy, was a communication error meaning there was something drawing power (radio, charger, etc). I figured it to be the clock.
It took about fifteen minutes for the computer to read the JK, then another ten or so to write the files back.
I drove it around the neighborhood to make sure it ran fine, and I'll take it out on the highway tomorrow. My JK sounded quieter at idle and appeared to "lug" less at lower gears when I shifted.
