Originally Posted by FHLH
Been searching, but from I'm not finding a way to adjust tire size for the EcoDiesel using a programmer.
I'd like to throw on my Sahara Rims with 225/70-18 tires.
However, I don't want to throw off the ABS and various other systems due to the increase in diameter.
The only programmer is the one Chrysler uses to do flash updates, etc. ... ie you cant do this your self. The Chrysler system only has a few preset tire choices in their system and their all relatively the same size.
On my Commander, I have tires that are one inch larger diameter thsn stock. I have driven it over 50,000 miles and have never encountered any issues due to the larger tire size.
You might be more concerned about going to a 225 wide tire as you are reducing the contact patch by quite a bit compared to the factory 265 wide tires.