Low Idle Stability (ICP Pressure)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- Check at low idle and EOT above 70°C (158°F)
- Monitor the ICP and RPM PIDS with the diagnostic tool.
| Parameter | Specification at 670 RPM | Measurement |
|---|---|---|
| ICP | 4.0 - 5.0 MPa +/- 0.3 MPa (580-725 psi MUE45 psi) | |
| Take reading before disconnecting ICP sensor. | ||
If engine RPM is unstable, disconnect the ICP sensor.
- ICP will default to 6.0 MPa (870 psi) when disconnected.
- If RPM smooths out, the ICP sensor or circuit is suspect.
- If RPM is still unstable, connect the ICP sensor and go to step 12b .