P0444 code

2015F31 · 04-12-2022, 02:31 PM

2015 228i: P0444
Already replaced Vent Valve - BMW (13-90-7-636-145) and gas cap. What else could be throwing the code?

Thanks

Knhattingh · 08-03-2022, 01:31 AM

heyo! Had the same issue a little bit ago. I replaced the vent valve located on top of the engine…

What i've found from my research is that it could also be a vacuum leak in the fuel system. An indie shop should be able to help out by using smoke and pumping it into the system. They let it sit for a little (for the car to do another vacuum test once turned on) then look at all the areas for visible smoke… this shows them where there could be a hole in the system which causes a vacuum leak.

I am sure you did, but when you replaced the vent valve, did you reset the CEL?

04-12-2022, 02:31 PM	#1
2015F31 Enlisted Member 15 Rep 49 Posts Drives: Black 2015 328i Sport Wagon Join Date: Nov 2018 Location: Dallas, TX iTrader: (0) Garage List 2015 BMW F31 [0.00]	P0444 code 2015 228i: P0444 Already replaced Vent Valve - BMW (13-90-7-636-145) and gas cap. What else could be throwing the code? Thanks
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08-03-2022, 01:31 AM	#2
Knhattingh Enlisted Member 1 Rep 43 Posts Drives: BMW 230I Join Date: May 2022 Location: Washington iTrader: (0)	heyo! Had the same issue a little bit ago. I replaced the vent valve located on top of the engine… What i've found from my research is that it could also be a vacuum leak in the fuel system. An indie shop should be able to help out by using smoke and pumping it into the system. They let it sit for a little (for the car to do another vacuum test once turned on) then look at all the areas for visible smoke… this shows them where there could be a hole in the system which causes a vacuum leak. I am sure you did, but when you replaced the vent valve, did you reset the CEL?
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