Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
Perform this test when directed by QUICK TEST. If PCM detects ICP sensor out of range high or low, Malfunction Indicator Light (MIL) or SERVICE ENGINE SOON light (F650-750) will be illuminated and PCM will go to open loop control of injection control pressure (operate from an estimated injection control pressure.) This test is intended to diagnose the following components and circuits:
- Injection Control Pressure (ICP) Sensor
- Wiring Harness Circuits; (ICP, SIG RTN & VREF)
- Powertrain Control Module (PCM)
ICP SENSOR SPECIFICATIONS
| Pressure - Psi (kPa) | Voltage |
|---|---|
| 0 (0) | .02 |
| 200 (1.4) | .40 |
| 400 (2.8) | .73 |
| 600 (4.1) | .96 |
| 800 (5.5) | 1.20 |
| 1000 (6.9) | 1.40 |
| 1200 (8.3) | 1.60 |
| 1400 (9.7) | 1.90 |
| 1600 (11.0) | 2.10 |
| 1800 (12.4) | 2.30 |
| 2000 (13.8) | 2.60 |
| 2200 (15.2) | 2.80 |
| 2400 (16.5) | 3.00 |
| 2600 (17.9) | 3.30 |
| 2800 (19.3) | 3.50 |
| 3000 (20.7) | 3.8 |