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Hey Steve would I adjust the BCSDC based on the IAT or the BASE DC? If it's only spiking slightly im assuming the adjustments required would only be slight adjustments?

Thank you so much for the help. Yeah the turbo overboosted and the computer initiated a fuel cut at WOT after the cat was removed. I did not know what values to change to counteract this but now I have an idea.

So since the first cat is removed and the exhaust gases have not been treated, the rear o2 sensor should be throwing a fault code. But instead it's throwing a no -high or low voltage code (randomly) for that sensor. This is more indicative of a faulty sensor? And just so I understand, a faulty...

So I did some checking. Had an exhaust leak in the downpipe gasket that meets with the second cat. Re gasketed the pipe, cleared the code and it stayed away for days and ran considerably better. The code just came back on today and now I'm at a loss. The code that popped up was a P2245 code...

I looked a little closer and it was a P2248. I checked off all of the ones except that one. So the car is idling very rough still. So getting rid of the codes does nothing except keep the light off right? Is the ECU still adjusting the fueling for the oxygen sensor data? Thats what i was led to...

It’s the exact same code. I’ll let VT know to kill the code and it comes back anyway.

Thanks for the reply. I’m using Versatuner. I’ve already cleared the code and entered the codes to keep from flashing but the dtc always returns.

2007 CX-7 2.3T Gutted the catalyst out of the first cat but still have the second cat. Car is throwing a code for oxygen sensor. I'm not sure which values to adjust first to account for the the delete. Any help would be greatly appreciated. Edit: Aside for a K&N filter, the car is completely stock.