EGR Electronic Vacuum Regulator Solenoid: Testing and Inspection
The technician should be aware that diagnosis and testing of the EGR vacuum regulator solenoid should begin at the
Powertrain Management level, where testing begins with Diagnosis by Symptom, and is narrowed to testing of a "specific" subsystem and it's related wiring and components. Following the appropriate diagnostic routines may prevent misdiagnosis and unnecessary component replacement. Refer to
Powertrain Management/Testing and Inspection/Procedures.