EVAP Tank Pressure Control Solenoid Valve Inspection
1. Disconnect the electrical connector from the [1][2]EVAP tank pressure control valve.
2. Using a DMM, measure the resistance of the pressure control valve between both terminals. The resistance should be 28 to 36 ohms at 20°C (68°F).
3. Replace the pressure control valve if the resistance is not 28 to 36 ohms at 20°C (68°F). If the resistance is within specification, proceed to Step 4.
4. Disconnect the [1][2]EVAP tank pressure control valve vacuum hoses from the intake manifold and the vacuum pipe from the fuel tank pressure control valve.
5. Blow air into the [1][2]EVAP tank pressure control valve vacuum hose that was disconnected from the vacuum pipe. Air should not pass through the EVAP tank pressure control valve and exit from the intake manifold hose.
6. Connect 12 volts DC to the terminals of the [1][2]EVAP tank pressure control vacuum valve.
7. Blow air into the [1][2]EVAP tank pressure control valve vacuum hose that was disconnected from the vacuum pipe. Air should pass through the EVAP tank pressure control valve and exit from the intake manifold hose.
8. Replace the [1][2]EVAP tank pressure control valve if the EVAP tank pressure control solenoid valve failed this inspection.
9. Connect the [1][2]EVAP tank pressure control valve vacuum hoses and the electrical connector.