P1190 Calibration Resistor Out of Range (Diesel)
What does P1190 mean on a Ford?
P1190 — Calibration Resistor Out of Range (Diesel). This Ford-enhanced code applies to Ford diesel models with electronic injection control.
Common causes of P1190
- Wrong calibration resistor fitted to the pump
- Corroded resistor contacts
- Open resistor circuit
- Replacement pump with mismatched resistor
- Controller sense fault
How to fix P1190
- Verify the resistor value against the pump part number
- Clean resistor contacts
- Test circuit continuity
- Fit the correct resistor for the pump
- Clear and confirm the code stays gone