Pinpoint Test He: Exhaust Gas RECIRCULATION (EGR) Systems: Introduction
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2018 Lincoln Navigator, 2018 Lincoln MKZ, 2018 Lincoln MKX, 2018 Lincoln MKT, and 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- differential pressure feedback exhaust gas recirculation (EGR) sensor (9J460)
- differential pressure feedback EGR sensor pressure hoses
- orifice tube assembly (9D477)
- EGR cooler
- harness circuits: DPFE, SIGRTN and VREF
- PCM (12A650)
| Pin | Circuit |
|---|---|
| 1 | DPFE (Differential Pressure Feedback EGR) |
| 2 | SIGRTN (Signal Return) |
| 3 | VREF (Reference Voltage) |
Powertrain Control Module (PCM) Connector
For PCM connector views or REFERENCE VALUES .
| Connector | Pin | Circuit |
|---|---|---|
| 306 PIN | E32 | DPFE |