Originally Posted by Mike@N54Tuning.com
With a piggy like the JB4 the ECU never sees values other then stock like. As for removing. Clear the codes if any from the steering wheel, turn off power, lock the doors and remove the JB4.
Enjoy a much slower driver to the dealer
I just had to remove my jb4 since I'm getting my turbos replaced under warranty.
I did clear the codes, but I didn't mess with my maps at all.
Was I supposed to put it back to map 0 before I removed the jb4?
I kept it at map 5, just cleared the codes, waited 10 minutes, then removed it.