EGR Valve: Testing and Inspection

EGR VALVE INSPECTION

On Vehicle Inspection

1. Crank the engine and listen for initialization noise (clicks) of the EGR valve by using a screwdriver or soundscope.

NOTE: EGR valve initialization is closing action of the valve observed before and after the engine is started, and when the engine is stopped.




2. If the initialization noise is not heard, inspect continuity of the wiring harness between the EGR valve and the PCM, and inspect the EGR valve.

EGR Valve Inspection




1. Inspect the resistance of the EGR valve coils.




2. If not as specified, replace the EGR valve.