I'm about to install a WB O2 in the passenger side front sensor bung and have been digging through threads to figure out just what DTC's I need to modify to tune the car without it thinking something is wrong. I know everybody's cars vary a little here and there, as far as the DTC codes go, so I know it's probably not a direct answer for everybody. I plan on reinstalling both NB's after I finish the tune.
1. I'm still running the CATs in this car, so I don't care if the rears are on or off from this day on. I figure turning them off will just avoid any issues later in life. Would this be sensible?
2. Should I turn both front sensors off while I'm tuning with the Wideband? I personally would think so, because the PCM will probably do something weird if it's only reading one bank, but I have to ask.
3. Would it be easier for me to just install the WB, start the car, read the DTC errors, and then turn off any DTC's that popped up in the error list?
4. What else am I forgetting?
Thanks,