As i understand it the spacing of the o2 sensor and. I tested the 90 degree o2 sensor defouler and it truly improved my vehicle's performance How to use a sparkplug antifouler to turn off you check engine light
Spark plug O2 Sensor Non Fouler Trick P0420 - YouTube
It gets extremely hot while drilling
Use some anti seize, and put it on the threads, then.
Here's how to bypass or trick the o2 sensor into thinking your catalytic converter is. I tried the spark plug defouler trick to see if it would clear the engine light code that popped up about a week ago The catalytic converter's performance is measured by the secondary oxygen sensor If the output is less than 95% it throws the p0420.
