|
|
|
|
 |
 
|
 |
BMW Garage | BMW Meets | Register | Today's Posts | Search |
 |
|
BMW 3-Series (E90 E92) Forum
>
Lean Codes
|
 |
| 04-30-2022, 05:19 PM | #1 |
|
New Member
0
Rep 2
Posts |
Lean Codes
I keep running into these lean codes on the new mhd stage 2 v1.84 tune. Car is a 2011 E90 N55 with catless Downpipe and chargepipe and k&n drop in filter. I keep getting these lean codes 2BC0 and 2C42.
Anyone have a idea what this could be ? |
| 05-06-2022, 01:06 PM | #2 |
|
Enlisted Member
 
3
Rep 43
Posts
Drives: 2013 E92 335xi MSport
Join Date: Aug 2021
Location: New Jersey
|
Lean codes would usually indicate a vacuum leak giving the air/fuel mixture more air than needed. Could also indicate not enough fuel being delivered.
Log with afr, trims, rail pressure, maf data would certainly help. I'd be more concerned with the DME fault code personally.
__________________
2013 E92 335xi MSport
DOCVU+JB4|xHP Stage 3|VRSF DP|VRSF FMIC|AFe Stg2 CAI|Remus Race Exhaust|ER CP|GFB DV+| |
|
Appreciate
0
|
| 05-09-2022, 09:10 AM | #3 |
|
New Member
0
Rep 11
Posts |
Been having the same issues for a long time now, currently running no tune but previously MHD stage 1. Check your o2's if your car has no vacuum leaks. Mine has had every possible leak addressed, injectors, HPFP, High reassure rail sensor etc addressed and I still get the code. Mine has also thrown a "Slow response" code for the pre-cat o2.
|
|
Appreciate
0
|
 |
| Bookmarks |
|
|
