|
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 |
#11
|
||||
|
||||
It did take me a couple of hours to get the valves off the back end of the block to remove the broken impeller pieces lodged there. People on the TS board reported dealers asking up to 3500 for a replacement job....completely unjustified. The one in the X5 4.4i lives under the air filter housing and is easy to get to. It is one of few parts that did not have to move out for the engine job I am completing.
__________________
2003 4.4i black ext./black int./black headliner (kid's runabout) 2014 535d X-drive, M package, silver/black interior Sold but not forgotten: 2009 E70 35d, black ext./black int./black headliner (sold 2021) 2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly... Other hardware: 2015 Cayenne S (wife's new DD and definitely wroooommmmm) 2016 Tundra 1794 edition crew cab, luxo hauler 2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles. |
Sponsored Links | |
|
#12
|
|||
|
|||
Good news is newer Volvo, such as 2004+ models, and later BMW (? 2007+) did away with this pump.
They use VVT technology to modulate the timing to reduce emission on cold start. PS: The purpose of the Pump is not to heat the cat, rather it injects extra air into the exhaust (the mixture during cold start is rick in gas: air ratio to allow easier start). So when extra air is injected into the exhaust, the amount of pollutants are reduced. Pollutants are uncombusted hydrocarbons (HC), carbon monoxide (CO), oxides of nitrogen (NOx), and particulate matter (PM).
__________________
1998 E39 528i 5sp MT 2006 E53 X5 3.0 6sp MT |
#13
|
|||
|
|||
Interesting. My 1998 M3 threw a SAP code in March 2016, then cleared and nothing since. Yesterday (Nov 12, 2019), it threw the code again. Both times, no noise coming from the SAP, and it just passed SMOG check last month -- so wondering if I should bother doing anything?
Hoping 2005 X5 stays quiet, too! |
#14
|
||||
|
||||
Secondary air pump suddenly noisy... No codes.
What's the sap error? My scan tool will engage sap to confirm it powers up. But air leaks or problem with valve will cause errors.
Were it me and it comes back less than monthly I would just reset it.
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife) Last edited by andrewwynn; 11-18-2019 at 11:22 AM. |
#15
|
|||
|
|||
Fault Codes:
F5 Secondary air system flow too low, Cyl 1-3 and F6 Secondary air system flow too low, Cyl 4-6 ...and when I said "no noise coming from SAP"...I meant no squealing or other weird noise upon cold startup. |
#16
|
||||
|
||||
What Scotty no noise at all? If it's not spinning you'll get those codes.
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#17
|
|||
|
|||
Always good to replace the valve on the exhaust manifold with the pump. They can stick and cause a new pump to go bad prematurely.
|
#18
|
||||
|
||||
The sap made noise when I bough the 2005 and it lasted for about 2 years after that and quit about 4 months ago.
The lack of noise and a secondary maf sensor error was the sign of its final demise. No code for the sap itself just the secondary maf sensor error. I was thinking the secondary maf was actually bad till I put the error code together with the lack of noise from the pump
__________________
Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
#19
|
||||
|
||||
Oh btw other than the error code you cant tell its dead. The X5 runs fine without it.
__________________
Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|