Exhaust Gas RECIRCULATION Solenoid Valve (Optima & MAGENTIS (CANADIAN) 2.4L)
NOTE:
Only component testing procedure is covered. For Exhaust Gas Recirculation (EGR) solenoid valve system and circuit testing procedure, see appropriate SELF-DIAGNOSTICS article.
NOTE:
For EGR solenoid valve removal and installation, see EXHAUST GAS RECIRCULATION SOLENOID VALVE
under EMISSION SYSTEMS & SUB-SYSTEMS in REMOVAL & INSTALLATION article.
- Disconnect EGR solenoid valve 2-pin harness connector. Check resistance between EGR solenoid valve terminals. See Fig 1test procedure No. 1. Resistance should be 30-34 ohms at 68°F (20°C). If resistance is not as specified, replace EGR solenoid valve. If resistance is as specified, go to next step.
- Using a fused jumper wire, connect battery voltage to terminal No. 1, energize EGR solenoid by grounding terminal No. 2. Listen for operational sound (click). See Fig 1test procedure No. 2. If operational sound is heard, go to next step. If operational sound is not heard, replace EGR solenoid valve.
- Connect vacuum pump to port "A" of EGR solenoid valve. While EGR solenoid valve is operated by battery power, Apply vacuum. See Fig 1 test procedure No. 3. If vacuum is not held, EGR solenoid valve is operating properly. If vacuum is held, replace EGR solenoid valve.