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VTBoss302 said:I did this on my Evo VIII RS and it worked, but the engine management and sensors on that vehicle are much less sophisticated than what is found on the Boss.
Unless you're trying to pass emissions, I'm not sure I would recommend it on the Boss.
Probably better (and safer) to live with the CEL and keep the wideband O2 sensors reading properly.
Rich_S said:The O2 sensors before the cats are widebands.
The 02 sensors after the cats (the ones that would be screwed into the spark plug foulers) are just regular O2 sensors. Their only purpose is to monitor the performance of the cats and take the appropriate action (tripping a CEL or the cat protection program).