Diagnose emissions and drivability concerns caused by the exhaust gas recirculation (EGR) system; inspect, test, service, and/or replace components of electrical/electronic sensors, controls, wiring, tubing, exhaust passages, vacuum/pressure controls, filters, and hoses of EGR system; determine the necessary action. 

Diagnosis should include

Components should include electrical/electronic sensors, controls, wiring, tubing, exhaust passages, vacuum/pressure controls, filters, and hoses of the EGR system.

Process/Skill Questions: