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co cat mot
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  1. E46 General
    Hi guys, failed the mot on the CO fast-idle test. Results: Fast Idle Test CO: 0.56% [limits: 0.30%] (failed) HC: 45ppm [limits: 200ppm] Lambda: 1.01 [limits: 0.97-1.03] Natural Idle Test CO: 0.03% [limits: 0.50%] Given its only the CO that failed and is not too high, what could this be...
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