Why would anyone disable front O2's, basically tuning one in open loop and then give it back to the customer that way? It's a good thing Camaro6 pointed all of that out, because I didn't even think to check the O2 settings...
Yes, I disable the heaters for the rear O2's the same time I disable the sensors. I also kill the stuck codes for them too. They usually pass self test showing good to go. All of the neighboring counties where I tune has emission testing, so has to show passed for all of that.
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Originally Posted by sevinn
I've even gone in behind "engineer's" that were supposed to have worked for particular brands and couldn't get the customer's cars figured out - but they get fixated like most engineers do on a small picture or item not working instead of looking at this table over here causing the problem over there... BUT that's mostly on ford products that don't want to cooperate... Also how I learned that the OE outsources A LOT of the tuning code to different people out there instead of controlling or containing everything in house.
