Pinpoint Test HE: Exhaust Gas Recirculation (EGR) Systems: Introduction: Notes
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
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).