Originally Posted by re-rx7
Your talking about COT protection. It only happens on Decel. Rear 02's do not control anything. they have a voltage reading of .1 to 1. The front Wideband 02's read .1 to 5 volts they would tell the ecu to run in open loop.
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Im not speaking for the rest, but a good tune has more done than just turning off COTP & nannie lights on these cars with no cats. Thats just one part of it.