I have an 06 IX with the Buschur Stage 1 mod, I just recently got this code 0420. I was curious which method would help fix this code without throwing another code, the Anti fouler method or get another o2 sensor? Thanks

 

Another O2 sensor will not fix your problem. You can do the anti fouler trick or buy something like this. Just make sure you have room to space the sensor out of the exhaust without hitting anything. Approx a inch with our piece.

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