05gtgreen

How does one turn off the rear o2 sensors on the sct x-cal2 tuner? I loaded the 87 octane tune on it, but couldn't find were to turn off the sensors. How do you change for gear ratios as well, thanks!

giovani13

You can't turn off the O2's with the hand held. You can call who ever did your tune and ask them to e-mail you an updated tune with the O2's off.

howarmat

With the diablo you can so i would hope you can with the SCT2 also.

05gtgreen

when i ordered the tuner from brent, i told him that i was goin to be installing headers with no cats. I was just wondering if you could turn them off from the hand held tuner. I thought you could with the sct.

tonkpils555666sas

you definetly can turn off the 02 sensors with the SCT Xcal 2 tuner... and you can also change the gear ratios. wen you select custom tune... wen scrolling through the options, you should see both the gear ratios and the 02 sensors in there, and once you select that option you can change the existing settings... i am very positive that you can do both with the Xcal 2... tell me one thing though, what does turning the 02 sensors do to the performance of the car?

howarmat

Its not for performance its to stop the light from coming on if you have a o/r pipe.