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International Automotive Technicians Network
Re: Lean codes and another rear 02 sensor issue
Posted to Technical Discussion Forum on 12/5/2010

[...trimmed text...]

If I remember right...

25% long term, 5% short term - CLOSED loop. Unsure of the monitor time. I remember it being very short.

EDIT - according to the information here on IATN, 2 seconds

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