Check Gas Cap light on VW and Audi 2.0T FSI

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Check Gas Cap light on VW and Audi 2.0T FSI

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2.0t FSI Evap Purge (N80) Valve

2.0t FSI Evap Purge (N80) Valve 06E906517A

 

The Evap or Evaporative emissions system is designed to burn the fuel vapors that build up in your fuel tank.  The fuel tank does not vent to atmosphere because fuel vapors contain hydrocarbons which are hazardous to the environment.  More specifically the green house effect and global warming.

 

The evap purge, know to VW and Audi as the N80 valve is a solenoid valve that controls the amount of fuel vapor going back to the engine to be burned.  This valve may often get stuck open, become clogged or no longer function electronically.  This most often will result in a “check gas cap light” on your dash, or a fault code P0441 (EVAP Emission Control Sys: Incorrect Flow).  This happens because the evap system pressurizes to make sure there are no leaks.  When the N80 valve is stuck open the car thinks you either have a leak in the Evap system or you left your gas cap off.

 

VW and Audi Fault Codes often caused by a bad Evap Purge (N80) Valve

  • P0441 - EVAP Emission Control Sys: Incorrect Flow
  • P0456 - EVAP System: Very Small Leak Detected
  • P0455 - EVAP System: Large Leak Detected

 

The evap purge valve is easy to replace and inexpensive.  This should be the starting point if you have any of the faults above(assuming you have a gas cap on the vehicle)  .  See these videos for more info about the VW and Audi Evap Purge (N80) Valve.

 

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OEM VW/Audi Part - OEM Evap Purge Valve 06E906517A

Bosch - Evap Purge Valve 06E906517A

 

Here we have a video talking about how VW and Audi N80 Valves Fail

 

How to replace the VW or Audi 2.0T FSI N80 Valve



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