Thread: Secondary Air Pump Question
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Old 08-13-2012, 09:17 PM
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rayxi rayxi is offline
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I've never timed it but 10-20 seconds sounds about right.

I suspect if you have the code then you have the secondary MAF sensor. Check your connection to the sensor.

Part number is 11721438814 (#8 in the diagram) if you need new sensor.
RealOEM.com * BMW E53 X5 3.0i EMISSION CONTROL-AIR PUMP
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