Help with O2 errors and speed sensor errors after headers and tune

[encasedmetal]

HI- have a 2013 Zl1 that just installed kooks headers and o/r midepipe with rotofab CAI and tune. Haven’t been able to turn the O2 and cat codes off with a tune-they keep coming back on (P015D, P015B, P0430, P0420, P0430). Me, nor the tuner has been able to figure out how to turn these off yet-car did make 525rwhp on a mustang dyno though lol. But now I’m also getting C0040 and C0035 for a brake switch A and right front speed sensor error codes. I did just have two front tires put on but that was 4 weeks ago and I had the O2 CEL’s on so I don’t know if they came on directly after changing tires. I have seen where possibly a cracked spark plug, loose plug wire, or tpms reset might help with the C0040, C0035 codes-can anyone confirm this or help give insight?
As for the O2 codes- how have you guys without cats turned off the CEL’s for not having rear O2’s active?

[m1key1111]

In HP tuners (engine diagnostics section) you can remove the SES light and the error code level with a quick unchecking of a box and setting the code to 3- No error reported on most codes like PO420, 430 like you listed above.

I'd also recommend disabling the COTS (Catalyst overtemp protection) as it dumps a ton of fuel in at the 5K rpm+ range (since you don't have cats). Then adjust your MAF fuel trimps and power enrichment fuel trims.

There are other things to do, all if which will be done by a competent tuner.

[encasedmetal]

Originally Posted by m1key1111

In HP tuners (engine diagnostics section) you can remove the SES light and the error code level with a quick unchecking of a box and setting the code to 3- No error reported on most codes like PO420, 430 like you listed above.

I'd also recommend disabling the COTS (Catalyst overtemp protection) as it dumps a ton of fuel in at the 5K rpm+ range (since you don't have cats). Then adjust your MAF fuel trimps and power enrichment fuel trims.

There are other things to do, all if which will be done by a competent tuner.

already did the no error reported first on the codes. That's the first thing I did and the codes came back. The COT is also disabled and I always add a little fuel if the car has cats.