27C3

EndOfAnEra · 10-08-2019, 05:55 PM

Hey guys. I’ve had this code since I bought my M3. I already replaced the actual DMTL pump on the rear drivers side. I was doing some research and I found something about a connector on the intake manifold that can cause this error? I am also getting some light idle surging as well. Any input would really be appreciated!!

EndOfAnEra · 10-14-2019, 09:19 PM

I will be replacing the fuel vent valve soon and will report back.

bigjae1976 · 10-15-2019, 08:27 AM

Quote:

Originally Posted by EndOfAnEra

I will be replacing the fuel vent valve soon and will report back.

Might be an extended warranty on it. Call the stealership.

EndOfAnEra · 10-19-2019, 08:59 PM

Just put a new valve in and am getting a tank ventilation valve 1 function test code (27a4).

Any input?

EndOfAnEra · 11-13-2019, 09:01 PM

For those of you who might research this problem in the future. Use OEM parts. I installed an OEM fuel tank vent valve and everything is good!

JPSurratt2005 · 01-11-2021, 04:43 PM

Quote:

Originally Posted by EndOfAnEra

For those of you who might research this problem in the future. Use OEM parts. I installed an OEM fuel tank vent valve and everything is good!

Thanks! I read that this was a part that can go out, so while I was doing the water pump job, I replaced mine with a cheap one. Looks like I'll be going back in with OEM cause the replacement threw a fault. That's what I get for going cheap.

10-08-2019, 05:55 PM	#1
EndOfAnEra Lieutenant Colonel 570 Rep 1,707 Posts Drives: F16 X6 Msport Join Date: May 2012 Location: Largo, FL iTrader: (13)	27C3 - DMTL Leakage Detection Hey guys. I’ve had this code since I bought my M3. I already replaced the actual DMTL pump on the rear drivers side. I was doing some research and I found something about a connector on the intake manifold that can cause this error? I am also getting some light idle surging as well. Any input would really be appreciated!! __________________ flickr
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10-14-2019, 09:19 PM	#2
EndOfAnEra Lieutenant Colonel 570 Rep 1,707 Posts Drives: F16 X6 Msport Join Date: May 2012 Location: Largo, FL iTrader: (13)	I will be replacing the fuel vent valve soon and will report back.
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10-19-2019, 08:59 PM	#4
EndOfAnEra Lieutenant Colonel 570 Rep 1,707 Posts Drives: F16 X6 Msport Join Date: May 2012 Location: Largo, FL iTrader: (13)	Just put a new valve in and am getting a tank ventilation valve 1 function test code (27a4). Any input? __________________ flickr
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11-13-2019, 09:01 PM	#5
EndOfAnEra Lieutenant Colonel 570 Rep 1,707 Posts Drives: F16 X6 Msport Join Date: May 2012 Location: Largo, FL iTrader: (13)	For those of you who might research this problem in the future. Use OEM parts. I installed an OEM fuel tank vent valve and everything is good! __________________ flickr
	Appreciate 0 Quote