Pinpoint Test HE: Exhaust Gas Recirculation (EGR) Systems: Introduction: Notes
NOTE:
This pinpoint test is intended to diagnose the following:
- Differential Pressure Feedback EGR. sensor. (9J460).
- Exhaust gas recirculation (EGR) valve (9D460) (9D475).
- EGR vacuum regulator (VR) solenoid (9J459).
- Orifice tube assembly (9D477).
- Differential pressure feedback EGR (DPFE) sensor pressure hoses.
- Vacuum lines.
- Harness circuits: VREF, DPFE, SIGRTN, EVR, VPWR.
- Powertrain control module (PCM) (12A650).