P1405 – Ford DTC

Ford DTC P1405 – Differential Pressure Feedback Electronic Sensor circuit Upstream Hose

DTC P1405 meaning on Ford

DTC P1405 refers to the Differential Pressure Feedback Electronic (DPFE) Sensor circuit Upstream Hose on Ford vehicles. This diagnostic trouble code indicates an issue with the DPFE sensor circuit’s upstream hose.

Ford DTC P1405 symptoms

Symptoms of DTC P1405 on a Ford may include:

• Check Engine Light illuminated
• Decreased engine performance
• Increased fuel consumption
• Rough idling or stalling

Ford DTC P1405 causes

Common causes of DTC P1405 on Ford vehicles include:

• DPFE sensor failure
• Upstream hose blockage or damage
• Wiring or connector issues in the sensor circuit

Ford DTC P1405 seriousness

While DTC P1405 may not cause immediate drivability issues, it can lead to decreased engine performance and increased emissions if left unresolved. It is recommended to address this code promptly.

How to diagnose DTC P1405 on Ford

To diagnose DTC P1405 on a Ford, follow these steps:

1. Inspect the DPFE sensor and its wiring for any visible damage
2. Check the upstream hose for blockages or leaks
3. Use a scan tool to monitor DPFE sensor readings while the engine is running
4. Perform a smoke test to check for vacuum leaks

How to fix DTC P1405 on Ford

To fix DTC P1405 on a Ford, you can:

1. Replace the DPFE sensor if faulty
2. Clean or replace the upstream hose if blocked or damaged
3. Repair any wiring or connector issues in the sensor circuit
4. Clear the trouble code and test drive the vehicle to ensure the issue is resolved

How to erase DTC P1405 on Ford

To erase DTC P1405 on a Ford:

1. Use an OBD-II scanner to clear the trouble code
2. Disconnect the vehicle’s battery for a few minutes to reset the system
3. After clearing the code, monitor the vehicle for any recurring issues

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