Flashed MHD a week ago after a year code free and this happened

DRock3d · 06-13-2018, 06:53 PM

Pulled over due to overheating, water pump was done before I bought the car. Not sure what's going on. Any help?

Paanzerfaust · 06-13-2018, 09:29 PM

First things first, did you have your android device in airplane mode with bluetooth and location off when flashing? The one time I had a problem with an MHD flash was because I forgot to turn on airplane mode, and since you have a dme:no coding error, plus a lot of those codes look unrelated and you didn't specify how soon after flashing it was maybe you just had a faulty flash.

Aside from that, the misfires could be due to your plugs if they're still a year old or your coils - higher performance requires better health from your engine which is why it's recommended to do those things before flashing.

Failing those two things, maybe it's a blown fuse or a ground/wire problem somewhere. You have the MSD81 so bad mosfets in your DME isnt likely and I'd still say you should start your way at the top of this post and work down to diagnose.

DRock3d · 06-13-2018, 09:41 PM

Quote:

Originally Posted by Paanzerfaust

First things first, did you have your android device in airplane mode with bluetooth and location off when flashing? The one time I had a problem with an MHD flash was because I forgot to turn on airplane mode, and since you have a dme:no coding error, plus a lot of those codes look unrelated and you didn't specify how soon after flashing it was maybe you just had a faulty flash.

Aside from that, the misfires could be due to your plugs if they're still a year old or your coils - higher performance requires better health from your engine which is why it's recommended to do those things before flashing.

Failing those two things, maybe it's a blown fuse or a ground/wire problem somewhere. You have the MSD81 so bad mosfets in your DME isnt likely and I'd still say you should start your way at the top of this post and work down to diagnose.

Airplane mode was used and I've had the flash for over a week. I was at the dealership yesterday for an airbag recall and had them tell me what the injectors we're. 11 bank one 8 bank 2. I'm not sure why they wouldn't tell me about these codes yesterday after checking that.

Paanzerfaust · 06-14-2018, 06:24 PM

Do you have proof the water pump was done before you bought it? If so, do you know if it was a brand new one and not used or an old PN? My guess is the pump and/or tstat failed causing the overheating and the heat caused your misfires, although I'd still recommend swapping out your coils and plugs anyway.

I know it seems like a lot (and it will be if you go to the dealer) but for the coils and plugs you can get a bundle on FCPEuro for ~200 and do it yourself in an hour or two, water pump and tstat you could do the same or have a good local indy do it for significantly less (the mechanic I use charges 95/hr labor, the dealer near me is 250+ last I checked two years ago) and once you get all that done your car will be good to go for a long while. The N54 is a good example of the classic BMW syndrome where you need to stay ahead of maintenance but the car will last forever and be very rewarding if you do.

hcopeland · 06-14-2018, 06:56 PM

Looks like its turbo related to me being that you have misfires in the rear bank. could have shot the rear turbo. How many miles? any waste gate rattle?

DRock3d · 06-14-2018, 07:53 PM

Quote:

Originally Posted by hcopeland

Looks like its turbo related to me being that you have misfires in the rear bank. could have shot the rear turbo. How many miles? any waste gate rattle?

why would that be turbo related?

hcopeland · 06-14-2018, 08:24 PM

Quote:

Originally Posted by DRock3d

why would that be turbo related?

I mean it could just be a coincidence but it’s related to one bank because 4,5,6 all misfired. Could also be O2 sensors. Just my thoughts

msjt · 06-15-2018, 01:15 PM

Quote:

Originally Posted by hcopeland

I mean it could just be a coincidence but it’s related to one bank because 4,5,6 all misfired. Could also be O2 sensors. Just my thoughts

He still has the codes for the water pump failing regardless.

hcopeland · 06-15-2018, 06:10 PM

Quote:

Originally Posted by msjt

He still has the codes for the water pump failing regardless.

yeah but the I'd me more concerned with an entire bank misfiring than a water pump.

JM98 · 06-17-2018, 12:42 AM

I would flash completely back to stock, clear the codes and then take it easy for a few miles and see what pops up again. Typically an entire bank misfiring is due to a bad 02 sensor. Is the car overheating? I’ve seen those codes before when a water pump was swapped but the prior codes not cleared. The fuel pump code is common and nothing to worry about.

Cabdriver · 06-18-2018, 11:40 AM

Ive heard of pumps going in a short time/miles.

Also, when I changed my pump recently, the harness insulation right at the point where the plug enters the pump was bare. I was able to use liquid tape and then wrap tightly with electrical tape.

I recommend checking that first, as some folks have lost pump functionality when the insulation goes, eventually causing the wires to spate from the plug.

If that's not it, do the purge procedure (check youtube) to make sure your pump is still operating, if not could be the thermostat. You mentioned the pump was changed but didn't mention the thermostat.

torrque · 06-18-2018, 11:48 AM

The DME power management error tells me there is more to that story there; I would look into voltage / power issues for DME, most likely the other errors are a by-product, not a root cause.
As others said, flash back to stock, reset all adaptations, and drive it like that for a while; fix all problems before coming back to boosted map.

06-13-2018, 06:53 PM	#1
DRock3d Kraut Driver 59 Rep 624 Posts Drives: 2014 650i GC/2011 335is DCT Join Date: Aug 2012 Location: Columbus, Ohio iTrader: (0) Garage List 2014 650i Gran Coupe [0.00] 2011 335is [1.00] 2007 328i [2.00]	Flashed MHD a week ago after a year code free and this happened Pulled over due to overheating, water pump was done before I bought the car. Not sure what's going on. Any help? Attached Images
	Appreciate 0 Tweet Quote

06-13-2018, 09:29 PM	#2
Paanzerfaust Private First Class 39 Rep 108 Posts Drives: 07 E92 335i Join Date: Jan 2018 Location: Chicago iTrader: (0)	First things first, did you have your android device in airplane mode with bluetooth and location off when flashing? The one time I had a problem with an MHD flash was because I forgot to turn on airplane mode, and since you have a dme:no coding error, plus a lot of those codes look unrelated and you didn't specify how soon after flashing it was maybe you just had a faulty flash. Aside from that, the misfires could be due to your plugs if they're still a year old or your coils - higher performance requires better health from your engine which is why it's recommended to do those things before flashing. Failing those two things, maybe it's a blown fuse or a ground/wire problem somewhere. You have the MSD81 so bad mosfets in your DME isnt likely and I'd still say you should start your way at the top of this post and work down to diagnose. __________________ 07 E92 335i - Sport package, aFe Stage-2 Pro 5R CAI, VRSF Catless Downpipes, H&R Race Springs. MHD Stage 2, xHP Stage 3
	Appreciate 0 Quote

06-14-2018, 06:24 PM	#4
Paanzerfaust Private First Class 39 Rep 108 Posts Drives: 07 E92 335i Join Date: Jan 2018 Location: Chicago iTrader: (0)	Do you have proof the water pump was done before you bought it? If so, do you know if it was a brand new one and not used or an old PN? My guess is the pump and/or tstat failed causing the overheating and the heat caused your misfires, although I'd still recommend swapping out your coils and plugs anyway. I know it seems like a lot (and it will be if you go to the dealer) but for the coils and plugs you can get a bundle on FCPEuro for ~200 and do it yourself in an hour or two, water pump and tstat you could do the same or have a good local indy do it for significantly less (the mechanic I use charges 95/hr labor, the dealer near me is 250+ last I checked two years ago) and once you get all that done your car will be good to go for a long while. The N54 is a good example of the classic BMW syndrome where you need to stay ahead of maintenance but the car will last forever and be very rewarding if you do.
	Appreciate 0 Quote

06-14-2018, 06:56 PM	#5
hcopeland Private 14 Rep 79 Posts Drives: Graphite E92 335i Join Date: Sep 2017 Location: Leona Valley, CA iTrader: (0) Garage List 2007 BMW e92 335i [0.00]	Looks like its turbo related to me being that you have misfires in the rear bank. could have shot the rear turbo. How many miles? any waste gate rattle? __________________ '07 335i e92 -- RB Turbos - JB4 G5 - MHD Tune - VRSF Catless DP - VRSF Relocated Inlets - Devilsown/BMS Methanol Injection
	Appreciate 0 Quote

06-17-2018, 12:42 AM	#10
JM98 Lieutenant 391 Rep 532 Posts Drives: 2009 135i Join Date: May 2016 Location: SoCal iTrader: (0)	I would flash completely back to stock, clear the codes and then take it easy for a few miles and see what pops up again. Typically an entire bank misfiring is due to a bad 02 sensor. Is the car overheating? I’ve seen those codes before when a water pump was swapped but the prior codes not cleared. The fuel pump code is common and nothing to worry about.
	Appreciate 0 Quote

06-18-2018, 11:40 AM	#11
Cabdriver Private First Class 52 Rep 164 Posts Drives: 2009 E90 335i Join Date: Jun 2016 Location: NJ iTrader: (0)	Ive heard of pumps going in a short time/miles. Also, when I changed my pump recently, the harness insulation right at the point where the plug enters the pump was bare. I was able to use liquid tape and then wrap tightly with electrical tape. I recommend checking that first, as some folks have lost pump functionality when the insulation goes, eventually causing the wires to spate from the plug. If that's not it, do the purge procedure (check youtube) to make sure your pump is still operating, if not could be the thermostat. You mentioned the pump was changed but didn't mention the thermostat.
	Appreciate 0 Quote

06-18-2018, 11:48 AM	#12
torrque Banned 298 Rep 650 Posts Drives: Ferrari F430, E92 M3, 335xi Join Date: Apr 2014 Location: Newton, MA iTrader: (0) Garage List 2005 Ferrari F430 [9.08] 2009 BMW M3 [10.00] 2008 BMW 335xi [0.00]	The DME power management error tells me there is more to that story there; I would look into voltage / power issues for DME, most likely the other errors are a by-product, not a root cause. As others said, flash back to stock, reset all adaptations, and drive it like that for a while; fix all problems before coming back to boosted map.
	Appreciate 0 Quote