Deleting o2 sensors

fastmark1993

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So as some of you may have read I was having an issue with my mark. The issue was that my mark would not idle while cold, I replaced the iac,ECT,cleaned the maf,tps(just because) and did a smoke test on the vacuum system which determined no leaks. After a few days the car finally threw a code.

Apparently it's saying my o2 sensors(both front) are bad. Now I was wondering if there was anyway to simulate/delete the front ones. I plan on doing a nasty exhaust so I'd have to figure this out anyways so I thought I'd ask.

My basic understanding of the front o2 sensors is that they determine the air/fuel ratio for the Ecu, well has a play in it is what I mean. So would I be able to cut the front cats out with out pissing them off so to speak? If so ill just buy new ones and weld bungs
 
Ya. Its the rear ones that can go out the window if you get a tune.
 

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