[edo]

Hi,

I did search a lot and know quite a lot about the most common causes of misfires and limp modes. However, I can't identify where the problem is. I'm confused.

Limp modes started as soon as I tuned my car. I used to get limp modes because of misfires in cylinder 5,6 and sometimes 4. The problem is still present. I get misfires while driving, when idle, with cold or hot engine.

I also get 11326 (Vishnu software)/P112D (c-reader) error quite often, but it usually doesn't cause a limp mode, just "service engine soon" light sometimes or no warning light at all (a shadow code which I see with Vishnu software). Sometimes, when I read the codes after limp modes, this code is present together with misfire codes.

Thought that the reason of misfires could be my spark plugs. Changed them. Misfires didn't go away.
Then I thought the reason could be bad spark plug coils. I swapped them: 1->6, 2->5, 3->4. Limp modes dissapeared for several days, but finally I got a limp mode again - misfires in same (4,5,6) cylinders. So, coils aren't the cause of the misfires.

These are the codes I read today (had 5 limp modes - the car starts to shake, goes into a limp mode and it is impossible to drive further):
10700, 10704, 10705, 10706, 10713.
Converted the codes (http://www.easycalculation.com/decimal-converter.php) and found definitions on e90post:

10700 - 29CC: haven't found the definition, but it's related with misfires.
10704 - 29D0: Misfirings, cylinder 4
10705 - 29D1: Misfirings, cylinder 5
10706 - 29D1: Misfirings, cylinder 6
10713 - 29D9: Misfirings in case of tank filling level too low (my tank is 1/2 filled)

Then I read the same codes with my OBDII code reader. Got these errors: P0304, P0305, P0305, P0153, P112D.
P0304 - Cylinder 4 Misfire Detected
P0305 - Cylinder 5 Misfire Detected
P0306 - Cylinder 6 Misfire Detected
P0153 - HO2S Slow Response Bank 2 Sensor 1
P112D - O2 sensor negative current or positive current control open circuit (bank 2 sensor 1).

What could be the reason of the misfires?
Bad O2 sensor? Injectors?

I don't think it's HPFP as my car starts normally (at once), with no cranks. But today it started shaking, shivering after each start. It used to shake after start only sometimes before. It seems that it's getting worse.

I have no warranty, so I really don't want to change everything - I have to pay for the parts. I want to identify the exact reason of misfires.

Thanks a lot in advance for your help.

[TheTwinz]

take your tune out and see if the problem persists.

[joec500]

I had this EXACT same problem with my old PROcede (Rev I) and as soon as I removed my tune everything was fine. I actually got the same P112D error. If you search my old posts you will see.

My only guess that an O2 sensor COULD be going bad? I am stock at the moment and I have yet to see that code pop up again.

Good Luck and post back if/when you get a solution.

-Joe

[OpenFlash]

Originally Posted by edo

Hi,

I did search a lot and know quite a lot about the most common causes of misfires and limp modes. However, I can't identify where the problem is. I'm confused.

Limp modes started as soon as I tuned my car. I used to get limp modes because of misfires in cylinder 5,6 and sometimes 4. The problem is still present. I get misfires while driving, when idle, with cold or hot engine.

I also get 11326 (Vishnu software)/P112D (c-reader) error quite often, but it usually doesn't cause a limp mode, just "service engine soon" light sometimes or no warning light at all (a shadow code which I see with Vishnu software). Sometimes, when I read the codes after limp modes, this code is present together with misfire codes.

Thought that the reason of misfires could be my spark plugs. Changed them. Misfires didn't go away.
Then I thought the reason could be bad spark plug coils. I swapped them: 1->6, 2->5, 3->4. Limp modes dissapeared for several days, but finally I got a limp mode again - misfires in same (4,5,6) cylinders. So, coils aren't the cause of the misfires.

These are the codes I read today (had 5 limp modes - the car starts to shake, goes into a limp mode and it is impossible to drive further):
10700, 10704, 10705, 10706, 10713.
Converted the codes (http://www.easycalculation.com/decimal-converter.php) and found definitions on e90post:

10700 - 29CC: haven't found the definition, but it's related with misfires.
10704 - 29D0: Misfirings, cylinder 4
10705 - 29D1: Misfirings, cylinder 5
10706 - 29D1: Misfirings, cylinder 6
10713 - 29D9: Misfirings in case of tank filling level too low (my tank is 1/2 filled)

Then I read the same codes with my OBDII code reader. Got these errors: P0304, P0305, P0305, P0153, P112D.
P0304 - Cylinder 4 Misfire Detected
P0305 - Cylinder 5 Misfire Detected
P0306 - Cylinder 6 Misfire Detected
P0153 - HO2S Slow Response Bank 2 Sensor 1
P112D - O2 sensor negative current or positive current control open circuit (bank 2 sensor 1).

What could be the reason of the misfires?
Bad O2 sensor? Injectors?

I don't think it's HPFP as my car starts normally (at once), with no cranks. But today it started shaking, shivering after each start. It used to shake after start only sometimes before. It seems that it's getting worse.

I have no warranty, so I really don't want to change everything - I have to pay for the parts. I want to identify the exact reason of misfires.

Thanks a lot in advance for your help.

Sounds like your Bank 2 front o2 sensor is damaged. I've seen this happen during downpipe installs where it is either knock around or over-torqued. If you replace it, the problem will be gone. The bad o2 sensor is responsible for fueling in cyl 4, 5 and 6. Which is why misfires are isolated to them. You can confirm this by removing the PROcede (which doesn't alter the front o2 sensor voltage off-boost, btw) and seeing if the problem persists. I suspect it will.

Shiv

[edo]

Thanks for the answers!
I'll change the sensor.

Shiv, could you specify where the sensor is located? Which DP?

[edo]

Can someone tell which O2 sensor is "bank 2 sensor 1"? Is it the one in front of catalyst (closer to the engine) or behind it (closer to the back of the car)?

[edo]

Originally Posted by edo

Can someone tell which O2 sensor is "bank 2 sensor 1"? Is it the one in front of catalyst (closer to the engine) or behind it (closer to the back of the car)?

Found it. Passenger side, pre-cat.

[OpenFlash]

Originally Posted by edo

Found it. Passenger side, pre-cat.

+1 Sorry I didn't see you question earlier. This forum moves too fast. Change out that sensor and get your problem resolved before racing around any more.

Shiv

[Sniz]

question on O2 replacement. Does the O2 sensor unplug from the harness/wire or is the entire wire and O2 sensor section have to be replaced?

I have not had to replace any on 335's yet, but i'm sure I will.

[edo]

Originally Posted by shiv@vishnu

+1 Sorry I didn't see you question earlier. This forum moves too fast. Change out that sensor and get your problem resolved before racing around any more.

Shiv

It's OK, I understand that.
Yep, I won't be racing until all the problems are solved. BTW, I decided to go fully catless and install aftermarket catbacks (found which aren't too loud, thanks to Scalbert)

[OpenFlash]

Originally Posted by Sniz

question on O2 replacement. Does the O2 sensor unplug from the harness/wire or is the entire wire and O2 sensor section have to be replaced?

I have not had to replace any on 335's yet, but i'm sure I will.

It's got it's own plug on the harness. Real easy/quick to swap out.

Shiv

[iPodAddict]

Hmm I'm facing a similar issue here...

After having the car off for several hours, when I start it up, it will idle very VERY badly. It even makes weird knocking / rattling sounds.

After the car warms up (usually about 5 minutes of me manually idling the car at 1000 rpms), I turn the car off, press the power button twice (where the gas gauge is now active and accurately displays how much is left), press the throttle twice (once to show the CEL, and once more to clear it). I press the clutch and start the car, and it's idling smoothly like nothing ever happened.

This is getting very annoying now.

So I brought my laptop in to the car this morning before heading into work and it displayed 1 CAN DME Error: 10706

I used to get P0303 and others when using an OBD II reader in the past. I changed the spark plugs and that seemed to help temporarily. But now the idling is getting worse with the weather getting colder in the great white north

Help?

[Ferre86]

is there way to purchase Bank 2 front o2 sensor online? bmw dealer's are only the places that we could find?

[edo]

Originally Posted by Ferre86

is there way to purchase Bank 2 front o2 sensor online? bmw dealer's are only the places that we could find?

I bought it from the dealer. After I replaced the sensor, misfires and limp modes disappeared.

[iPodAddict]

Originally Posted by edo

I bought it from the dealer. After I replaced the sensor, misfires and limp modes disappeared.

Do you have the part number on hand?

[eyemdbmw]

ipodaddict,
it's probably a bad injector. i would swap coils first to see if that changes the misfire code to the other cylinder. 10706 i think is cylinder 6 misfire. if it does, you have a bad coil and an easy fix. if the problem persisits in cyl. 6, you need a new injector.

i just swapped mine for similar symptoms and now it runs great.

[edo]

Originally Posted by iPodAddict

Do you have the part number on hand?

11787558087

[Quizarate]

Funny to see this post resurected now. Yesterday I had UR catted DPs, AE catless exhaust and a Helix intercooler installed. Getting the following codes. Wonder if my O2 sensor is broken...

2C9C:
2C9C Lambda probe heating in front of catalytic converter, input signal
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

Freeze Frame Information
Event 1Odometer 33864kms 21042miles
ceramic temperature Lambda probe in front of catalytic converter bank 1 0.00 °C
time since start end 0.00 s
Battery Voltage 11.52 V
Lambda probe heating in front of catalytic converter bank 1 80.08 %

Event 2Odometer 33864kms 21042miles
ceramic temperature Lambda probe in front of catalytic converter bank 1 0.00 °C
time since start end 0.00 s
Battery Voltage 11.52 V
Lambda probe heating in front of catalytic converter bank 1 81.64 %

Event 3Odometer 33888kms 21057miles
ceramic temperature Lambda probe in front of catalytic converter bank 1 0.00 °C
time since start end 0.00 s
Battery Voltage 11.78 V
Lambda probe heating in front of catalytic converter bank 1 2.73 %



2CAB:
2CAB Lambdaprobe 2 before catalyst, temperature
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1Odometer 33864kms 21042miles
symptom Lambda probe heating in front of catalytic converter bank 2 1.00 0-n
Battery Voltage 13.57 V
Lambda probe heating in front of catalytic converter bank 2 75.39 %
voltage Lambda probe in front of catalytic converter bank 2 0.00 V

Event 2Odometer 33864kms 21042miles
symptom Lambda probe heating in front of catalytic converter bank 2 1.00 0-n
Battery Voltage 12.54 V
Lambda probe heating in front of catalytic converter bank 2 87.89 %
voltage Lambda probe in front of catalytic converter bank 2 0.00 V

Event 3Odometer 33888kms 21057miles
symptom Lambda probe heating in front of catalytic converter bank 2 1.00 0-n
Battery Voltage 13.57 V
Lambda probe heating in front of catalytic converter bank 2 75.39 %
voltage Lambda probe in front of catalytic converter bank 2 0.00 V



2C3E:
2C3E Lambda probe in front of catalytic converter 2, control failure or cable transmission failure?
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1Odometer 33864kms 21042miles
Lambda-nominal value group 2 1.00 -
voltage offset signal path CJ120 2 0.00 V
voltage Lambda probe in front of catalytic converter bank 2 0.00 V
ceramic temperature Lambda probe in front of catalytic converter bank 2 0.00 °C

Event 2Odometer 33864kms 21042miles
Lambda-nominal value group 2 0.95 -
voltage offset signal path CJ120 2 0.00 V
voltage Lambda probe in front of catalytic converter bank 2 0.00 V
ceramic temperature Lambda probe in front of catalytic converter bank 2 0.00 °C

Event 3Odometer 33888kms 21057miles
Lambda-nominal value group 2 1.00 -
voltage offset signal path CJ120 2 0.00 V
voltage Lambda probe in front of catalytic converter bank 2 0.00 V
ceramic temperature Lambda probe in front of catalytic converter bank 2 0.00 °C



29D1:
29D1 Misfirings, cylinder 5
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1Odometer 33880kms 21052miles
Engine temperature 97.50 °C
load value for misfire detection 88.67 %
Engine speed 6,080.00 rpm
Lambda integrator group 2 -34.38 %

[iPodAddict]

Originally Posted by eyemdbmw

ipodaddict,
it's probably a bad injector. i would swap coils first to see if that changes the misfire code to the other cylinder. 10706 i think is cylinder 6 misfire. if it does, you have a bad coil and an easy fix. if the problem persisits in cyl. 6, you need a new injector.

i just swapped mine for similar symptoms and now it runs great.

This morning i got 10700, 10704 and 10706 while i was datalogging the early morning start-up.

So it's starting to look more and more like that o2 sensor.

[eyemdbmw]

^ might want to get the latest software update if you haven't already

[rbaldwin28]

I got 2CA7 and 2CAB on my way home tonight. The car runs fantastic though. Very fast very strong. Any Ideas?

[kptaylor]

Hmmm...

I'm stock and running default 10-9 Stage 1 maps (Rev 1 h/w) and got similar codes for the first time once it got down to the low forties this week. Weird that Shiv says the Procede doesn't alter O2 values from this sensor off boost, which I assume includes start up. May just be a coincidence, though, and my car could need something changed.

I, too, had to coax it through idle until it warmed up a little, then shut it off, restarted and things were fine. (After clearing the codes with my BT.)