I being testing the Superchip at different settings.
Now using 93 Octane and running the 91 performance my check engine light comes on and the code I get is P0159 (O2 Sensor 2/2 Slow response). I cleared the code and it comes up again but when I change to 87 performance the code does Not comes up.
Has any else run into this situation ?

Thanks.

 

Have you gone online and updated your Superchip tuner? The service bulltetin that came out recently was to address the O2 sensor issue, I would suggest that the Jeep software and the Superchip software both need to be updated to insure they are compatible.

 

Thank you for your reply and WELCOME to the Forum.

The jeep had the reflash/reprogram for a recall related to the O2 slow response a Year ago.
I had the Superchips after that and no problem even run it at 91 set up and no problems.

I did post it in the Superchips Forum Trouble section but no reply. We will see.

The code only happens when running the Tuner at 91. I set it to 87 Performance and no problem/ no code.
Even after running for over 100 Miles in the highway.