Help ID'ing engine part
12-12-2012 | 02:53 PM
#1
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Joined: Oct 2012
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From: Fishers, IN
Help ID'ing engine part
If you look at the attached picture, I was looking through my engine today and noticed the highlighted area was lose.
I have 2 questions.
1) Can this affect the engine performance in anyway
2) Can anyone help me name the part and if possible a part number as well.
I'm trying to self diagnose the lack of power my engine has been experiencing.
Thanks.
I have 2 questions.
1) Can this affect the engine performance in anyway
2) Can anyone help me name the part and if possible a part number as well.
I'm trying to self diagnose the lack of power my engine has been experiencing.
Thanks.
Last edited by felixakinyemi; 12-12-2012 at 02:59 PM.
12-14-2012 | 02:57 AM
#3
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Joined: Apr 2004
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From: Richmond Va
My Ride: Numero Uno in Richmond Va 04 530 6 speed, jet black, black dakota leather, xenons, red rear reflectors, 545 front grill, cold weather package, premium package, staggered 19 inch BBS rxII/michelins, H&R coilovers and intergrated, R1 concept drilled an
Model Year: 2004
Engine: 530i
Do or did you have a coolant leak also the filler box looks like it could use some tlc
12-14-2012 | 04:46 AM
#4
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From: Fishers, IN
12-14-2012 | 05:08 AM
#5
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From: Austin, TX
My Ride: 2004 545i Sport
1998 M3
I believe that is the hose coming from the secondary air (not to be confused with second derriere) pump. It attaches to the secondary air check valve, the round thingy. The secondary air system only operates for about 45 seconds at startup. If the check valve is stuck open, fresh air may leak into the exhaust and a false lean condition will be read by the O2 sensors. The ecu will compensate by adding fuel and the engine will run rich.
12-14-2012 | 06:49 PM
#6
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Joined: Oct 2012
Posts: 11
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From: Fishers, IN
I believe that is the hose coming from the secondary air (not to be confused with second derriere) pump. It attaches to the secondary air check valve, the round thingy. The secondary air system only operates for about 45 seconds at startup. If the check valve is stuck open, fresh air may leak into the exhaust and a false lean condition will be read by the O2 sensors. The ecu will compensate by adding fuel and the engine will run rich.
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