EGR Bypass Valve Check

Comp. Loc:

1. Disconnect the three vacuum hoses from the Exhaust Gas Recirculation (EGR) bypass valve.
2. Disconnect the EGR bypass valve electrical connector.
Measure
^ Measure the resistance of the EGR Bypass valve terminals (valve side). The resistance should be 37-44 ohms at 20°C (68°F).
^ Measure the resistance between the terminal (valve side) and the body. The DMM should read 1M ohm or higher.
^ If the resistance is not within the correct specification in either check, replace the EGR bypass valve.

Description:

3. Connect battery voltage to the EGR Bypass valve.
4. Blow air into tube B. Air should exhaust from tube A and not from tube C.
5. Replace the EGR solenoid vacuum valve if the valve does not perform satisfactorily.
6. Connect the EGR Bypass valve electrical connector.
7. Connect the three vacuum hoses to the EGR Bypass valve.