If I took the wires to the horn, shorted them out against other wires and got codes in my car that doesn't mean deleting the horn is a problem. While you can do however you please, you often come to the conclusion that A and B therefore C without any actual evidence.
I left cookies out at night, they were gone in the morning, therefore Santa IS real. Hopefully you see what I mean, there are other potential explanations.
1. Car ran fine without o2 codes for years.
2. Installed radium catch can and took out heater element wire.
3. Reconnected heater element wire but did not leave slack and was too taught at connector.
4. O2 faults and car ran rough with
- DME active codes -
2C2C - DME: Oxygen sensor 2 before catalytic converter: System check.
2C3E - DME: Oxygen sensor 2 before catalytic converter: Line fault.
2C7F - DME: Lambda control 2.
2CAB - DME: Oxygen sensor 2 before catalytic converter: Temperature
5. Disconnected heater element and rerouted wire to give slack.
6. Car ran normal with no error codes.
What evidence you need? Those are the conditions and errors. If you know something about this that I don't, I'm all ears. Otherwise, that is the evidence no matter what preconceptions anyone might have on the heater element. You, me, BMS... anyone in any forum.
Not saying it is the heater element definitely, but evidence shows that it only happened when that wire was disturbed. 1 week old o2 sensors.... so, it would not be o2 sensors and I did not even touch any o2 connections.
Neither am I saying that deleting the element will cause the same errors. However, shorting out the connection may cause such problems to the emissions system if false signals are being reported abort about the temperature for the pcv section which is directly relevant to the o2 and fuel trims...related to smooth or rough running engine.
Deleting - there is nothing to short out.
Damaged wire connection - short circuit possible.
Literally the only thing electrical that was touch was the heater element wire.