[persian54]

Taking my car in Monday for brakes/squeaking from the front

got a SES light today

Following codes:



2C31:
2C31 Lambda probe in front of catalytic converter, trimming control
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Freeze Frame Information Event 2
Odometer 27872kms 17318miles
voltage Lambda probe behind catalytic converter bank 1 0.66 V
voltage Lambda probe in front of catalytic converter bank 1 1.91 V
Lambda shifting return valve 1 0.00 -
input signal return valve 1 0.00 V
Event 3
Odometer 27984kms 17388miles
voltage Lambda probe behind catalytic converter bank 1 0.74 V
voltage Lambda probe in front of catalytic converter bank 1 1.52 V
Lambda shifting return valve 1 0.00 -
input signal return valve 1 0.00 V


29CD:
29CD Misfirings, cylinder 1
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

Freeze Frame Information Event 2
Odometer 27848kms 17303miles
Engine temperature 99.75 °C
load value for misfire detection 38.28 %
Engine speed 3,232.00 rpm
Lambda integrator group 1 0.00 %
Event 3
Odometer 27848kms 17303miles
Engine temperature 107.25 °C
load value for misfire detection 25.78 %
Engine speed 736.00 rpm
Lambda integrator group 1 0.00 %


2C32:
2C32 Lambda probe in front of catalytic converter 2, trimming control
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Freeze Frame Information Event 2
Odometer 27912kms 17343miles
voltage Lambda probe behind catalytic converter bank 2 0.70 V
voltage Lambda probe in front of catalytic converter bank 2 1.70 V
Lambda shifting return valve 2 0.00 -
input signal return valve 2 0.00 V
Event 3
Odometer 28000kms 17398miles
voltage Lambda probe behind catalytic converter bank 2 0.70 V
voltage Lambda probe in front of catalytic converter bank 2 1.74 V
Lambda shifting return valve 2 0.00 -
input signal return valve 2 0.00 V


Safe to keep or should I clear them ?

I know they're 02 sensor codes plus the misfire

Went through Mr. 5s BT code list... not listed.. Just want to see if it's safe to keep.. i need my warranty

[cb1111]

If you need your warranty then don't mod your car. This seems a prime example of why BMW should refuse warranty service on modded cars.

If a mod caused an issue then man up to it. You've got to pay to play.

Trying to cover up problems caused by a mod doesn't help in the diagnosis and, once detected, makes the dealership unhappy with any modded car.

[Chriztofor]

Since they are working on your brakes, I would clear it in case they check for codes. You wouldn't want them to find something in there that alerts them your car is/was modded. Now go and mod no more.

[persian54]

Well since this forum unfortunately doesn't give as much advise as it does criticism, I went to a better source: BMW and Terry

2C3X codes are O2 codes that are NOT related to tuning.
Rather, a bad/damaged O2 sensor

But still safer to clear it due to my catless DPs


/Thread