Re: Overdrive and Tuners
Your overdrive should be on when you start the car, so there will be no light or indicator on the dash. The O/D button will turn it "off" which locks out that overdrive gear, which will decrease your mileage and cause your engine to run at higher rpms, especially at higher speeds.
I'm assuming the 05+ work the same as the 99-04's which is what I have.
When I added a new shifter knob and boot etc I had to relocate the O/D button. The first time I relocated the button I installed the wires backwards, so the O/D would be "off" when I started the car lol. I simply switched them and it worked just like it did before when it was on the shifter knob.
Not sure whether the tuner would be able to adjust the overdrive settings, but that's a good question..the tuning service would probably know.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB