16825/P0441/001089

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16825/P0441/001089 - EVAP Emission Control Sys: Incorrect Flow

Possible Symptoms

  • Malfunction Indicator Light (MIL) active

Possible Causes

  • Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) faulty/jammed
  • Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115) faulty/jammed
  • Evaporative Emission (EVAP) Canister Sealing faulty
  • Pipes between Tank Breathing and Throttle Body leaky/blocked

Possible Solutions

  • Check Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
    • Perform Output Test
  • Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve (N115)
  • Check Evaporative Emission (EVAP) Canister
    • Perform Basic Setting
  • Check Pipes between Tank Breathing and Throttle Body

Special Notes

  • When found in the NAR 1.8T Audi A4 1.8T check TSB 24-08-78 or 2010268/3 or Pass-Thru equivalent TSB
  • When found in the NAR 1.8T VW Passat 1.8T check TSB 01-09-09 or 2005554 or Pass-Thru equivalent TSB
    • Note: The Passat 26E5 or "R5" recall includes the same software update
  • Make sure the quick release lines for the N80 valve and vacuum line to LDP are not crossed.
    • This can also make the engine hard to start after filling up the fuel tank.



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