Thread: Tuners and cats
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Old 09-17-2013, 01:50 PM
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A custom tune on a Diablo tuner can turn off the rear o2 sensors that cause the CEL you're getting from not having cats.

I'm running a similar set up with my Pacesetter LT's and no cats. I had my tuner turn off the rear o2's so I wouldn't get the CEL.
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