Surprised we don't have anything like this, as it seems like it'd be helpful for anyone to post their codes that they may have for some help.
Surprised we don't have anything like this, as it seems like it'd be helpful for anyone to post their codes that they may have for some help.
Me, with my good manners, will obviously start and get the ball rolling:
I have p0174 - Bank 2 running lean.
I know there are multiple things to trigger this light.. like o2 sensors (pre-cat & post-cat, MAF, and torn intake boots)
Is there anything I can do besides throwing parts at it and hoping it'll fix it? Other than checking intake boots of course. I've thought that it couldn't be a MAF or intake problem as wouldn't that contribute to Bank 1 & Bank 2 running lean together? So perhaps it's an o2 sensor?
The Connor curse :shfity
E92 335i M-Sport
997 S
Dalton,
Buy a can of carb cleaner, don't take anything off the engine, start it up and spray the carb cleaner all around the intake boots (upper & lower). If you get a rise in the idle speed, it means your intake boot is torn and the resulting vacuum leak sucked the carb cleaner in. This is very simple and only costs you part of a can of carb cleaner. And if it is a torn boot, then use the remainder of the can to clean up your ICV when you get that far down in there.
Bruce
Bruce
21 GMC Sierra - mine
16 X5 M-Sport - wife
11 M3 - 1st son
04 Tundra - 2nd son
17 X1 M-Sport - daughter
Former (mo/yr sold):
15 335xi M-Sport (8/18)
11 335is (8/17)
11 X5 AW/blk (11/15)
04 330xi blk/gray (7/15)
06 ZHP SGM/blk (6/15)
08 335xi blue/blk (4/15)
04 ZHPci MB/blk (2/14)
04 ZHPcic IR/Alc (10/13)
01 540iT anthra/blk (7/13)
04 ZHPci TIAG/blk (9/12)
03 540i M-Sport (9/12)
01 325ci (3/12)
02 325iT 5MT (10/11)
05 ZHPci (7/11)
03 330cic (2/11)
00 323ci (10/10)
I have 27C3 (thermal oil sensor) and 2761 (secondary air) right now...
"Cam"
2009 Ultrasonic Blue Mica/Alpine White ISF
1998 Nassau Blue/Grey C5 Corvette 6spd Sold
2003 Imola Red/Alcantara 330i ZHP 6spd Sold
2002 TiAg/Black M3 6spd Sold