[Ramize92335]

I have a bmw 2011 335i (n55) 35k miles. At first i thought it could be the hpfp because my mechanic told me that can be the cause so i decided to take out the mhd scanned the car and these are the codes i got.
29D8- Intake air temperature- Charge air temperature, Comparison: Intake air temp to high.
2EE0- Combustion misfiring several cylinders: fuel injection deactivation.
2EE2- Combustion misfiring several cylinders: damagin exhaust gas after start sequence.
2EF4- Combustion misfiring: cylinder 6 Fuel injection deactivation
2EF6- Combustion misfiring: cylinder 6 damaging exhaust gas after start sequence.
2EFE- Misfire, several cylinders: Damaging to catayltic converter or damaged exhaust gas.
2F04- Misfire, cylinder 6: Damaging to catalytic converter or damaged exhaust gas.
DME Shadow Codes:
290A: intake air temperature sensor: Multiple fault.
2BDE: Fuel High Pressure during fuel injection release: Pressure to low
2EF7: Map thermostat, activation.


Currently MHD stage 2+ 93OCT, Catless Dp vrsf, bms intake, racewerks chargepipe. Havent change spark plugs or coils when i bought the car maybe that can be the issue just need help. Car starts fine no delay in car starting. When driving power is obviously not there and sounds like a harley bike.

[Ramize92335]

Heres the log:

View post on imgur.com

[TheGoodTheBadTheUgly]

Is this a log of a complete pull? Like was your acceleration pedal engaged at 100% all the time?

If so, you are having some very weird numbers for your AFR and your Fuel Rail Pressure which dips to a very low value. You also said your car sounds differently.

Is your downpipe still well connected?

[Ramize92335]

Originally Posted by TheGoodTheBadTheUgly

Is this a log of a complete pull? Like was your acceleration pedal engaged at 100% all the time?

If so, you are having some very weird numbers for your AFR and your Fuel Rail Pressure which dips to a very low value. You also said your car sounds differently.

Is your downpipe still well connected?

When i logged it through mhd it started recorded when driving, and when i engaged at 100% it barely moves just sounds like a harley when trying to engage it goes just takes really long due to the misfire. And car shakes when i full stop but when im on highway the shake isnt as bad usually cruise at 50-60mph but if i try to go faster engine shake is alittle stronger. I ordered new ngk sparks and delphi coils hoping it can be that.

[TheGoodTheBadTheUgly]

Originally Posted by Ramize92335

When i logged it through mhd it started recorded when driving, and when i engaged at 100% it barely moves just sounds like a harley when trying to engage it goes just takes really long due to the misfire. And car shakes when i full stop but when im on highway the shake isnt as bad usually cruise at 50-60mph but if i try to go faster engine shake is alittle stronger. I ordered new ngk sparks and delphi coils hoping it can be that.

Ok that's an easy starting point. Please use https://datazap.me in the future to upload your MHD logs and just toss the link of the logs so we can easily go through them.

[Ramize92335]

Originally Posted by TheGoodTheBadTheUgly

Ok that's an easy starting point. Please use https://datazap.me in the future to upload your MHD logs and just toss the link of the logs so we can easily go through them.

Heres the log mate.

https://datazap.me/u/ramizj94/bmw-n5...og=0&data=3-14

[jlegelis]

Need more details....
- Was it running fine with these mods at one point?
- What changed or under what circumstances did the faults occur, ie. was work being done on the car, were you drag racing, etc?
- Have you checked all physical connections and connectors?
- What happens when you reset the codes? Do the symptoms recur?

[AJN55]

Any further updates?? My car is having virtually the same issue.

[wheela]

Originally Posted by Ramize92335

Heres the log mate.

https://datazap.me/u/ramizj94/bmw-n5...og=0&data=3-14

Did you ever get this sorted? I see your stft is stuck at 0, and your fuel mode is mostly 2 and at 1 point 3. I've only seen fuel mode 0 on my logs, not sure what 2 and 3 are, perhaps some kind of open loop mode (dme is not using stft based on O2 sensor output). Being stuck in open loop for some reason would explain the messed up afr's, but I don't know why your car is running in open loop mode. Have you emailed Justin at Twisted Tuning?

[wheela]

Originally Posted by wheela

Did you ever get this sorted? I see your stft is stuck at 0, and your fuel mode is mostly 2 and at 1 point 3. I've only seen fuel mode 0 on my logs, not sure what 2 and 3 are, perhaps some kind of open loop mode (dme is not using stft based on O2 sensor output). Being stuck in open loop for some reason would explain the messed up afr's, but I don't know why your car is running in open loop mode. Have you emailed Justin at Twisted Tuning?

Based on your codes, I suspect something is going on with your tmap sensor. Maybe that's causing the open loop fueling, messed up afr's, and misfiring?