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Hi,
last year I bought so called O2 simulators at SLP. you need them when you want to remove the catalytic converters and don't want to throw the PCM trouble codes about that.
Before removing the cats I clipped the O2 sims in place instead of the original after cat sensors, just to see if they were working.
After about 20 miles I got two codes (left and right bank cat malfunction).
So obviously these O2 sims are crap. Does anybody know how to cheat the PCM when you remove the cat?
 

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