[sashmanparker]

I had a few long cranks and the car would misfire hardcore when in vacuum but runs fairly smooth with in boost. Ran the bt tool and got these codes.


Current Fault Codes

29CD:
29CD Misfirings, cylinder 1
Error will cause a warning light
Error is not currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 35488kms 22051miles
Engine temperature 106.50 °C
load value for misfire detection 28.91 %
Engine speed 992.00 rpm
Lambda integrator group 1 -25.00 %



29CF:
29CF Misfirings, cylinder 3
Error will cause a warning light
Error is not currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 35488kms 22051miles
Engine temperature 108.75 °C
load value for misfire detection 9.77 %
Engine speed 1,248.00 rpm
Lambda integrator group 1 0.00 %



29CC:
29CC Misfirings, several cylinders
Error will cause a warning light
Error is not currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 35488kms 22051miles
ambient temperature 22.50 °C
rail pressure 50,265.15 hPa
voltage Kl. 87 13.71 V
counter recognition bad road 0.00 -



2FBF:
2FBF Fuel pressure at injection release
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1Odometer 35496kms 22056miles
rail pressure 0.00 hPa
PWM-Signal of mass control valve 57.42 %
voltage Kl. 87 11.07 V
fuel pressure before mass control valve 4,797.27 hPa



2C7E:
2C7E Lambda probe behind catalytic converter, trimming control
Error will cause a warning light
Error is not currently present
Test conditions have not been completed
Signal or value below threshold

Freeze Frame Information
Event 1Odometer 35496kms 22056miles
voltage Lambda probe behind catalytic converter bank 1 0.04 V
voltage Lambda probe in front of catalytic converter bank 1 1.84 V
Lambda shifting return valve 1 0.00 -
input signal return valve 1 0.00 V

Fuel Pump maybe? bad o2 sensor?

opinions would be nice. Currently running procede v4 with the 2-23 maps, catless dp's with hfc exhaust

TIA

[onefastman]

Could be many things, hpfp, injector, coil, 2 sensor, plugs, or any combo of these. Start basic and check the plugs and swap the coils. there is a high chance it is hpfp related too with the 2fbf

[sashmanparker]

Originally Posted by onefastman

Could be many things, hpfp, injector, coil, 2 sensor, plugs, or any combo of these. Start basic and check the plugs and swap the coils. there is a high chance it is hpfp related too with the 2fbf

thanks for your help i changed the plugs already and they seemed to have the normal wear for 20k plugs the mechanic said the coils looked fine and they also looked at the injectors with a boroscope and said they looked to be fine as well. only issue left i guess is fp or bad o2 sensor.

[R1000K3]

I don't think looking at the injectors with a boroscope will tell anything. I don't mean they are faulty, but that they must be tested and not just looked on.

[sashmanparker]

Originally Posted by R1000K3

I don't think looking at the injectors with a boroscope will tell anything. I don't mean they are faulty, but that they must be tested and not just looked on.

can dealer only test them or can they be done independently?

[R1000K3]

I don't know but guess it is primarily BMW and the injector manufacturer that conducts such test. Dealers change parts based on codes and cut-and-try methods and wild guessings, so it not even sure they can make a component test like this. Check with the dealer what they are able to do.