Ford OBD-II Error Code P1107

Ford OBD-II Major Fuel and Air Metering

Model: OBD-II | Code: P1107

Applicable Systems
F-150 Mustang Explorer Focus Edge Escape Fusion Ranger

Symptoms

The ECM has detected a fuel and air metering auxiliary emitter fault. The check engine light is illuminated. Vehicle may experience reduced performance, rough idle, or failed emissions test.

Possible Causes

  • Wiring open or shorted to ground
  • Connector corrosion or loose pin
  • Sensor internal failure

Troubleshooting Steps

  1. Step 1: Connect OBD-II scan tool and read all active DTCs
    DTC code and freeze frame data retrieved
  2. Step 2: Inspect wiring harness and connectors for damage or corrosion
    Wiring intact, connectors clean and seated
  3. Step 3: Test sensor or actuator resistance and signal output
    Component output within manufacturer specification
  4. Step 4: Check fuse for the circuit and replace if blown
    Fuse intact or replaced with correct rating
  5. Step 5: Clear DTC with scan tool and road test to verify repair
    No re-occurrence of DTC after test drive

How to Reset

To reset: Clear the DTC with an OBD-II scan tool after repairing the underlying issue. Drive the vehicle through a complete drive cycle to confirm the repair.

Frequently Asked Questions

  • Q: What does P1107 mean on a Ford?

    P1107 is a manufacturer-specific code indicating a fuel and air metering auxiliary emitter issue. Refer to the Ford service manual for exact component identification.

  • Q: Can I drive with P1107 active?

    Short-term driving is possible, but the underlying issue should be diagnosed promptly to prevent catalytic converter or engine damage.

Related Ford Fault Codes

Comments (0)

Share your experience to help others facing the same problem.

No comments yet. Be the first to share your experience!

Leave a Comment

Source: SAE J2012 Manufacturer-Specific DTC, Ford Service Manual

Category: OBD-II