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Dont know if im stupid but...

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Old 08-06-2007, 12:08 AM
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Default Dont know if im stupid but...
What the hell are O2 Sims? Are they good or bad? Are O2 sensors better?
Pleas help me im so confused.
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Old 08-06-2007, 01:30 AM
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02 sims are "simulators" that fool the computer so that you can remove both rear 02 sensors. The computer only registers both precat sensors.
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Old 08-06-2007, 02:49 AM
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+1 on that, the only reason for o2 sims if for the rear post cat o2's are for emissions. i just had mine tuned out. The pre-cat o2s are a little hard to mess with unless your going to tune the **** out of the car.
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