PINPOINT TEST DI: Direct Fuel Injection Fuel Injector: Introduction
WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not apply battery voltage across the fuel injector circuits. Permanent damage to the fuel injector may result.
This pinpoint test is intended to diagnose the following:
- fuel injectors (9F593)
- harness circuits: INJ and INJRTN
- PCM (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| INJ (Injector) | 1 |
| INJRTN (Injector Return) | 2 |
Harness Side
| Circuit | Pin |
|---|---|
| INJ1 (Injector 1) | E83 |
| INJ1RTN (Injector 1 Return) | E78 |
| INJ2 (Injector 2) | E82 |
| INJ2RTN (Injector 2 Return) | E77 |
| INJ3 (Injector 3) | E93 |
| INJ3RTN (Injector 3 Return) | E88 |
| INJ4 (Injector 4) | E94 |
| INJ4RTN (Injector 4 Return) | E89 |