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P0491 Diagnostic Trouble Code Discussion for September 2011

Secondary AIR System Insufficient Flow Detected (Bank 1)


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Trouble Ticket Help Requests for DTC P0491
Help Request Posted
2001 BMW 330Ci 3.0L MIL Lamp on VIN: WBABN53491
P0491: secondary airlowflow. have tested all the usual areas for this complaint, and all is well.found that DME is not giving groung to activate air pump or vacuum solinoid,also ECT is working normally.what else can ihibit this function other than failing DME? any help is good help,thanks...
September 29, 2011
2001 BMW 330Ci 3.0L MIL Lamp on VIN: WBABN53491
P0491: secondary airlowflow. have tested all the usual areas for this complaint, and all is well.found that DME is not giving groung to activate air pump or vacuum solinoid,also ECT is working normally.what else can ihibit this function other than failing DME? any help is good help,thanks...
September 30, 2011
2001 BMW 330Ci 3.0L MIL Lamp on VIN: WBABN53491
P0491: secondary airlowflow. have tested all the usual areas for this complaint, and all is well.found that DME is not giving groung to activate air pump or vacuum solinoid,also ECT is working normally.what else can ihibit this function other than failing DME? any help is good help,thanks...
September 29, 2011
2001 BMW 330Ci 3.0L MIL Lamp on VIN: WBABN53491
P0491: secondary airlowflow. have tested all the usual areas for this complaint, and all is well.found that DME is not giving groung to activate air pump or vacuum solinoid,also ECT is working normally.what else can ihibit this function other than failing DME? any help is good help,thanks...
September 30, 2011