T: Fuel Delivery Command Signal (FDCS)
Introduction
Introduction
1997 PCED OBDII-Diesel | SECTION 5C: Pinpoint Tests |
T: Fuel Delivery Command Signal (FDCS) Introduction | T: Pinpoint Tests |
Enter this pinpoint test only when directed here from the symptom flowcharts.
This pinpoint test is intended to diagnose only the following:
The FDCS is the output that controls the fuel injection timing and controls fuel quantity with the injection pressure regulator (IPR). This signal is sent with the cylinder identification (CID) signal to the IDM which provides power and distributes the proper signal to the appropriate injector.
P1663 = FDCS circuit failure
| T: Pinpoint Tests |