1994 PCED OBDI-A | SECTION 18A: Diesel Diagnosis — 7.3L DI Engine |
T: Fuel Delivery Command Signal Introduction | T: Pinpoint Tests |
You should enter this pinpoint test only when directed here from the symptom flow charts.
This pinpoint test is intended to diagnose only the following:
The fuel delivery command signal is the output that controls the fuel injection timing and controls fuel quantity (with the injection pressure regulator). This signal is sent with the Cylinder ID (CID) signal to the injector driver module (IDM) which provides power and distributes the proper signal to the appropriate injector.

| T: Pinpoint Tests |