S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

does the ECU use the O2 sensors?

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Old Apr 19, 2005 | 08:07 AM
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Default does the ECU use the O2 sensors?

are they used to keep the car running properly? or can you run the car with them removed?
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Old Apr 19, 2005 | 08:10 AM
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hahahahhaha - that was funny.
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Old Apr 19, 2005 | 08:11 AM
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True, I threw them away long ago...
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Old Apr 19, 2005 | 08:14 AM
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Default Used to adjust Fuel/Air Ratio for fuel efficiency & emissions.

There are O2 Sims that you can replace the sensors w/ to fool the ECU. APR's 2+ software also has the O2 Sim built-in (well just eliminates the CELL).
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