16825/P0441/001089

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.