|
|
01-23-2017, 01:49 PM | #1 |
.
242
Rep 714
Posts |
P2629 aka 274B - 02 Sensor Error
So I'm getting this code:
274B - P2629 Information saved in DME Fault code 274B - P2629 Fault text Oxygen sensor pump current calibration fault before cat. converter, bank 2 Fault description O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1) Condition for fault identification Test condition: Oxygen sensor is available, oxygen sensor voltage > 4951 mV (K_LAVK_OBD_SA_DIAG_OL) . Terminal condition: Engine running - overrun condition . Voltage condition: none Condition for fault memory entry after a defined SA phase the lag period K_LAVK_OBD_SA_T (2.5 sec) must be completed Action in service 1. Check plug and wiring harness on pre-cat oxygen sensor LSVK B2 (especially trim circuit wire IA), . 2. If OK, replace oxygen sensor Fault effect and breakdown warning MIL lamp on after engine runs 2x /Small influence on drivability Driver information Warning light: MIL Service instruction None There are a few threads on this, however, no clear or confirmed explanation for a fix. Or 'workaround'. I have test pipes with a BPM Stage 2 Tune, but assuming there is no correlation here. Is this the pre-cat sensor? If so, does anyone have the exact part number? I also heard that the Bosch version can be 'faulty' or 'cheap'. Is it recommend to buy OE? Thanks!
__________________
Current: 2009 Alpine White/Black e90 m3
Past: 2008 Interlagos/Black e92 m3 |
01-24-2017, 04:58 PM | #2 | |
Stop the hate, get a V8
3850
Rep 8,625
Posts |
Quote:
If you clear the code, does it come back right away? OBD2 systems are quite temperamental. Bosch is a huge OEM supplier, their sensors are not faulty/cheap...not sure where you heard that. Heck, I wouldn't be surprised if they were one of the OEM suppliers for the sensors.
__________________
Now: 2017 Corvette Grand Sport, 2021 AMG C63 S sedan
Past: 2011.5 M3 sedan ZCP |
|
Appreciate
0
|
01-25-2017, 12:56 PM | #3 | ||
.
242
Rep 714
Posts |
Quote:
Ordered the Bosch sensor for $89 from Amazon. Going to replace this week. I thought the same about Bosch but have read multiple posts on here saying they were 'cheap'. Pretty sure BMW OEMs them.
__________________
Current: 2009 Alpine White/Black e90 m3
Past: 2008 Interlagos/Black e92 m3 |
||
Appreciate
0
|
01-27-2017, 09:16 AM | #4 |
.
242
Rep 714
Posts |
Was the precat sensor. I've only driven about 20 miles, but the codes are not coming back immediately, as they were.
This was the culprit (you can see there is a massive chunk of metal missing, as well as thread marks near the top): Snapchat for good measure
__________________
Current: 2009 Alpine White/Black e90 m3
Past: 2008 Interlagos/Black e92 m3 |
Appreciate
0
|
02-07-2017, 07:44 AM | #7 |
.
242
Rep 714
Posts |
The car is actually balanced enough to solely sit on the front stand. The jack was there for precaution and didn't have much (if any) weight on it. Although, two stands would probably be the best.
__________________
Current: 2009 Alpine White/Black e90 m3
Past: 2008 Interlagos/Black e92 m3 |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|