SES light: Bank 1 and 2 lean... - BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3

		BMW M3 Forum.com (E30 M3 \| E36 M3 \| E46 M3 \| E92 M3 \| F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
SES light: Bank 1 and 2 lean...

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.

Thread Tools

Display Modes

Thu, Nov-10-2011, 02:33:14 AM	#1
dsakach Registered User Join Date: Nov 2011 Posts: 3 In the garage: '01 BMW M3 Reputation: 0	SES light: Bank 1 and 2 lean... Got a SES light in a few days ago. Got the code read and it said "Banks 1 and 2 lean". I'm thinking it's an oxygen sensor, or MAF sensor. My question is, which cylinders are bank 1 and 2, respectively. Also, is there any way to tell if it's the upstream or downstream O2 sensor that's bad? Should I just replace them both? Thanks in advance.

Tags

bank, lean, light, sensor, ses

« Previous Thread | Next Thread »

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT. The time now is 10:35:59 PM.

Home - Archive - Privacy Statement - Top

M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service

One of the largest message boards on the web !

Discussing SES light: Bank 1 and 2 lean... in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)