|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#1
|
||||
|
||||
Emissions air pump?
X was sounding like a jet plane for the first minute or two after start up. Pumps air into the m54 for quicker warm up if I remember correctly. Researched it little over a year ago...too many other gremlins came up in the meantime. Removed from a boneyard visit. |
Sponsored Links | |
|
#2
|
|||
|
|||
It pumps air into the exhaust, when the SAP is on the DME is adding extra fuel to create a very fuel rich mixture. This fuel rich mixture doesn't combust completely and in the exhaust it meets the fresh air from the SAP and burns again, causing the catalytic converters to get to operating temperature very quickly.
It can be deleted with no ill effects and still pass emissions in at least most states (CA and states following CA emissions I am unsure). |
#3
|
||||
|
||||
Great...sounds concise! I only knew partial that amount of info. No wonder I was not in a hurry to replace. Maybe this check engine light will disappear!
Thanks a heap! Sent from my TMAF035G using Tapatalk |
#4
|
|||
|
|||
I deleted it on the e36. There is a block off plate and gasket to purchase otherwise there'd be an open hole in the exhaust manifold. I never got a check engine light from it, which was weird. I wonder if the prior owner did something. I recently bought the DME swap from kassel performance that fully deletes it. This is installed but I haven't fired it up yet, still taking forever on the head gasket job. A few more days, hopefully it all works.
I want to delete it on e53 for sure just haven't gotten to it, trying to get rid of codes still. You might have an exhaust leak, https://www.fcpeuro.com/products/bmw...te-11121438086 https://www.fcpeuro.com/products/bmw...et-11727505259
__________________
'05 E53 3.0 6mt. Sterling gray metallic / black. 135k daily driver '96 E36 328is 5mt. Alpine white / gray. 160k restoration project '17 F30 340ix 6mt. Black sapphire metallic / black. 80k missing engine |
#5
|
|||
|
|||
__________________
E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey E70 X5 40d -12 M-Sport Space grey |
#6
|
||||
|
||||
Quote:
Thanks Sent from my 9029W using Tapatalk |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|