Evaporative Emission (EVAP) canister purge regulator valve 1, checking

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Solenoid valve is closed when no voltage is present.

Recommended special tools and equipment

V.A.G 1526 multimeter or V.A.G 1715 multimeter
V.A.G 1594 connector test kit
Wiring diagram

Test requirements

Fig 1: Identifying Main Fuse Panel

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The respective fuses of Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- must be OK:

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

Ground (GND) connections between engine and chassis must be OK.
Ignition switched off.

Test sequence

Fig 2: Locating 2-Pin Connector At Evaporative Emission Canister Purge Regulator Valve -N80-

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect 2-pin connector from Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- (arrow).

Fig 3: Checking Evaporative Emission Canister Purge Regulator Valve N80 Internal Terminals 1 And 2 For Resistance

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Check resistance between terminals of solenoid valve.

Specified value: 22.0 to 30.0 Ω

If specified value is not obtained:

Replace Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-.

NOTE: Note installation position: Arrow on the valve points in direction of flow

Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data
Generate readiness code. Refer to Readiness code, generating

If specified value is obtained:

Check wires to control module according to wiring diagram. Refer to Evaporative Emission (EVAP) canister purge regulator valve 1, checking .

Check wires to control module

Connect test box to control module wiring harness. Refer to Test box, connecting for wiring test

Vehicles with engine code AFP

Fig 4: 2-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Check wire between test box socket 64+2-pin connector terminal 2 for open circuit according to wiring diagram.

Wire resistance: max. 1.5 Ω

Vehicles with engine codes BDF and BJS

Fig 5: 2-Pin Electrical Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Check wire between test box socket 64+2-pin connector terminal 2 for open circuit according to wiring diagram.

Wire resistance: max. 1.5 Ω

Continuation for all vehicles

Also check the wire for short circuit to B+ and Ground (GND).

Specified value: ∞ Ω

Check wire between 2-pin connector terminal 1 and the Fuel Pump (FP) Relay -J17- for open circuit according to wiring diagram.

Wire resistance: max. 1.5 Ω

Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data
Generate readiness code. Refer to Readiness code, generating

If no malfunctions are found in wires:

Replace Motronic Engine Control Module (ECM) -J220-. Refer to Engine Control Module (ECM), replacing .