Engine/Transmission (1998.5 - 2002) Having the Dealer change my tire size

[Dave Ratcliffe]

I had them do it once when I got 35"s, now I'm considering go to 305/70s and they are about 2" shorter.



The problem is that I have a special ECM program from Marco because of my manual to auto conversion and don't want it over-written.



So my question, can they change the tire size without flashing the ECM?



Dave

 

[Dave Ratcliffe]

Anybody? Do they flash the whole ECM or just the ABS stuff?

 

[BBliss]

the ecm is left alone, and the pcm doesn't get reflashed either, it is only a calibration change in the abs computer.