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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #101  
Old 08-22-2013, 11:47 AM
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1BADBM 1BADBM is offline
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Mein Auto: 530i
Quote:
Originally Posted by cn90 View Post
Fuse 107 controls only the Air Pump. So there is a short in your new Air Pump!
Is the Air Pump OEM Pierburg?

Frustrated, no problemoooooo, you are a candidate for SAS Delete using Radio Shack 90-cent diode.
We need a guinea pig, can I nominate you as the 1st to try the diode trick?

http://www.bimmerfest.com/forums/sho...d.php?t=716325
I think you are on to something! Do you think its possible that when I jumped the relay to test the pump it could have fried the pump or something else? When I jumped the relay it sparked and the pump kicked on. I lost connection so I did it again to make sure I heard the pump and the wire smoked a bit so i pulled it off. I breezed through the delete thread but I'd have to really read it to see if im capable lol
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  #102  
Old 08-22-2013, 05:34 PM
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Jason5driver Jason5driver is offline
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Mein Auto: E39 hamster w/ pin-wheel
Quote:
Originally Posted by cn90 View Post
Fuse 107 controls only the Air Pump. So there is a short in your new Air Pump!
Is the Air Pump OEM Pierburg?

Frustrated, no problemoooooo, you are a candidate for SAS Delete using Radio Shack 90-cent diode.
We need a guinea pig, can I nominate you as the 1st to try the diode trick?

http://www.bimmerfest.com/forums/sho...d.php?t=716325
Not to be off topic, but...

But, if the pump is making a loud turbine noise, only in the mornings at start-up, is that a sign that the air valve is toast, or the pump being toast...?
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  #103  
Old 08-25-2013, 08:32 AM
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1BADBM 1BADBM is offline
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Quote:
Originally Posted by Jason5driver View Post
Not to be off topic, but...

But, if the pump is making a loud turbine noise, only in the mornings at start-up, is that a sign that the air valve is toast, or the pump being toast...?
Jason i think its the pump. Any codes?
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  #104  
Old 08-25-2013, 09:34 PM
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Jason5driver Jason5driver is offline
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Originally Posted by 1BADBM View Post
Jason i think its the pump. Any codes?
Nope.
No codes...
Just the jet engine sound at startup in the mornings....
I have noticed the car running rich too...
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  #105  
Old 09-03-2013, 12:30 PM
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1BADBM 1BADBM is offline
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Last question on this then I give up. I tested pump is working before install. Pump does not kick on when installed. Is there a chance jumping the relay could have damaged or fried anything in the E box that would cause the fuse to keep blowing?
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  #106  
Old 10-02-2013, 06:58 PM
solarwindsusa solarwindsusa is offline
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Mein Auto: 2001 525i
Secondary air pump problem solved

I read this forum over completely and HAD a problem getting the SAP to work. I tried everything mentioned with countless hours tracking down the problem. I took everything apart and did every test procedure. Long story short after replacing every possible part it was corrosion that destroyed the brown wire crimp inside the connector on the pump itself. I cut the connector off and used some new bullet connectors crimped onto the wires feeding the pump and all of my problems were solved. I HOPE THIS SAVES SOMEONE THE MANY HOURS I SPENT WITH THIS PROBLEM. My sincerest thanks to all of those who posted in this thread to help me finally solve this problem!
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  #107  
Old 10-02-2013, 07:05 PM
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Flybot Flybot is offline
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I just threw out my SAS. While taking out the pump, my connector was completly shorted out. The insulation around the pump wires going into the pump was crumbling off. Proobably due to heat from shorting.

But yes, this issue may be pretty common with pump failures. Something to look for.
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  #108  
Old 10-02-2013, 08:07 PM
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1BADBM 1BADBM is offline
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Wow thanks for that information solarwindusa I will check my wires and connection this weekend!
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