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#1 (permalink) Old 02-17-2006, 02:58 PM
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Question Help finding secondary air system pump!

I just bought the code scanner for my '97 528i. It indicates "Secondary air system flow too low" for all cylinders. I've read that this is probably caused by a bad Secondary Air Pump and/or check valve. Does anyone know where these are located on the car, what they look like, how much they cost, or if it is an easy home job?

TIA

R. Eric Dawson
'02 X5, '97 528i, '03 Z4
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#2 (permalink) Old 02-25-2006, 11:02 PM
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You have two problems. The secondary non-return valve is faulty and/or your secondary air pump is defective.

Take a look at this one for a 7 series

http://www.bimmerboard.com/forums/posts/57582
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#3 (permalink) Old 02-27-2006, 07:06 PM
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Quote:
Originally Posted by billB
You have two problems. The secondary non-return valve is faulty and/or your secondary air pump is defective.

Take a look at this one for a 7 series

http://www.bimmerboard.com/forums/posts/57582
Thanks alot. I took a look and I'm not sure if I'm comfortable removing my bumper to get to that damn thing to replace it. I may give it a try though.

R. Eric Dawson
'02 X5, '97 528i, '03 Z4
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