Hey everyone, 2015 JKU Sahara with 2.5 in. budget boost. Just installed 33 inch K02s and new wheels. Got the AEV Pro Cal and programed the new tire size and now my engine light is on, jeep drives heavy, and the automatic transmission is all over the place. Basically, Jeep drives like crap. Thanks for any advise.

 

Hrm.. perhaps try this.

1. Program the jeep back to factory (in case you had a dipswitch mistakenly set)

2. Program the tire diameter based on MEASURED diameter (lots of threads on how to do this) rather than advertised diameter.

Good luck!

 

X2 sounds like you hanged gear ratio instead of tire size. I'd restore it and start over. I have read more than once of someone having dips the wrong way

 

Check yer settings on the ProCal. Mine worked perfectly. Call AEV customer support if possible if still doesn't work

 

so what did you find?