10-07-2020, 11:12 AM | #1 |
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2011 X3 35i P2421 code
P2421- Evaporative Emission system - vent valve stuck open. I got this code shortly after fuel tank fillup - may have over filled.
I cannot find a repair procedure for this? How to access the vent system - is it behind the right rear cargo panel? What part is the likely culprit - vent pipe, leak diagnosis pump or activated charcoal filter? |
10-07-2020, 09:55 PM | #2 |
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Drives: Z4MC-X3-35i-525i, Corrado G60
Join Date: Nov 2007
Location: MD
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I heard overfilling a modern vehicle can cause expensive repairs to the emission venting system. When filling up and the gas nozzle auto-stops, I don't try to top it off past that.
Sorry, I can't help how to fix your issue but am following to hear what it takes to resolve it. |
Appreciate
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evap system, p2421, vent valve |
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