Code 315A (P2421) Fuel tank valve: jammed open - may not be what you think?

Nitolin79 · 04-19-2022, 10:30 PM

Please need help with code p2421 or 315A. Vent valve stuck open . Already replaced the purge vent valve which is located in the engine and also replaced the tank vent valve that is located on the rear passenger side . Nothing works still have the check engine light On . Do anyone knows if there is any other valve related to emission .
Please help .
Thanks

Street of Rage · 04-20-2022, 12:30 PM

Quote:

Originally Posted by Nitolin79

Please need help with code p2421 or 315A. Vent valve stuck open . Already replaced the purge vent valve which is located in the engine and also replaced the tank vent valve that is located on the rear passenger side . Nothing works still have the check engine light On . Do anyone knows if there is any other valve related to emission .
Please help .
Thanks

You may want to unmount the canister, give it a few shakes and thump. Then reinstall, clear codes and let it run and check.

NRigs · 04-20-2022, 02:49 PM

I have issues with pumping my gas and the pump stopping too. It doesn't happen every time and it definitely is not worth $435 to fix. The canisters are up to $350 on FCP and the leak detection pump is $85. No codes here though. Would there be any repercussions in not replacing these items?

Street of Rage · 04-20-2022, 05:40 PM

I also changed the leak detection pump as well, FYI.
Some mentioned canister fix is to thump it on the ground to break up the particles inside.

Nitolin79 · 04-28-2022, 11:10 PM

Quote:

Originally Posted by Street of Rage

You may want to unmount the canister, give it a few shakes and thump. Then reinstall, clear codes and let it run and check.

Thanks I will try it .

04-19-2022, 10:30 PM	#23
Nitolin79 New Member 0 Rep 8 Posts Drives: 2012 BMW X5 35i Join Date: Apr 2022 Location: New Jersey iTrader: (0)	Please need help with code p2421 or 315A. Vent valve stuck open . Already replaced the purge vent valve which is located in the engine and also replaced the tank vent valve that is located on the rear passenger side . Nothing works still have the check engine light On . Do anyone knows if there is any other valve related to emission . Please help . Thanks
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04-20-2022, 02:49 PM	#25
NRigs Lieutenant 94 Rep 321 Posts Drives: 2011 BMW 335xi Join Date: Feb 2017 Location: Ma iTrader: (0)	I have issues with pumping my gas and the pump stopping too. It doesn't happen every time and it definitely is not worth $435 to fix. The canisters are up to $350 on FCP and the leak detection pump is $85. No codes here though. Would there be any repercussions in not replacing these items? __________________ Current: 2011 BMW 335xi \| Wedge Tuned \| Meth \| VRSF DP \| VRSF 5" Intercooler \| VRSF Chargepipe \| BMS Intake \| xHP Stg 3 Totaled:2014 Audi A4 CTS K04 APR Tuned
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04-20-2022, 05:40 PM	#26
Street of Rage Second Lieutenant 60 Rep 217 Posts Drives: 2011 BMW 335i e92 Join Date: Aug 2017 Location: 818 Northridge iTrader: (0)	I also changed the leak detection pump as well, FYI. Some mentioned canister fix is to thump it on the ground to break up the particles inside. __________________
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