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Home >> BMW >> 2012 >> 535i GT >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Performance - Functional Description -- F07 >> Engine Performance - Functional Description >> Tank Vent Valve >> General notes
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General notes

If the oxygen sensors before the catalytic converter in cylinder bank 1 and cylinder bank 2 do not supply any plausible values, or a malfunction is diagnosed with both oxygen sensors, the tank vent valve switches to emergency operation. In emergency operation, the flow rate of the scavenging air depends on the engine speed and throttle valve position (lower than during normal operation).

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