EGR SOLENOID VALVE INSPECTION [WLT-1, WLT-2]

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WLT-2 Only

Airflow inspection

Note

• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Remove the EGR solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [WLT-1, WLT-2].)

3. Inspect for airflow between ports of the solenoid valve.

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4. If not as specified, replace the EGR solenoid valve. If the EGR solenoid valve is okay, but PCM terminal voltage is out of specification, inspect as follows and repair or replace as necessary.

• Vacuum hose improper routing, kinks or leakage.

Open circuit

• Power circuit (EGR solenoid valve connector terminal A and PCM connector terminal R)

• GND circuit (EGR solenoid valve connector terminal B and body GND through common connector)

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Short circuit

• EGR solenoid valve connector terminal A and PCM connector terminal R.

5. Repair or replace faulty areas.

6. Install the EGR solenoid valve connector.