Ford DTC P1401 – Differential Pressure Feedback Electronic Sensor circuit High Voltage
DTC P1401 meaning on Ford
DTC P1401 for Ford refers to the Differential Pressure Feedback Electronic (DPFE) sensor circuit registering high voltage. The DPFE sensor is a crucial component in the vehicle’s exhaust gas recirculation (EGR) system, responsible for monitoring the exhaust gas flow and providing feedback to the engine control module.
Ford DTC P1401 symptoms
Symptoms of DTC P1401 on a Ford may include:
- Check Engine Light (MIL) illuminated
- Decreased fuel efficiency
- Engine performance issues such as rough idling or hesitation
- In some cases, the vehicle may go into a reduced power mode
Ford DTC P1401 causes
Common causes of DTC P1401 on a Ford include:
- DPFE sensor malfunction
- Wiring or connector issues in the DPFE sensor circuit
- Excessive carbon buildup in the EGR system
- Faulty EGR valve
Ford DTC P1401 seriousness
While DTC P1401 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and increased emissions. Ignoring this code can potentially cause damage to other components of the EGR system over time.
How to diagnose DTC P1401 on Ford
To diagnose DTC P1401 on a Ford, you can:
- Inspect the DPFE sensor and its wiring for any visible damage
- Check the EGR valve for proper operation
- Use a scan tool to monitor DPFE sensor voltage readings while the engine is running
- Perform a smoke test to check for leaks in the EGR system
How to fix DTC P1401 on Ford
To fix DTC P1401 on a Ford, you may need to:
- Replace the DPFE sensor if it is faulty
- Repair any damaged wiring or connectors in the DPFE sensor circuit
- Clean or replace the EGR valve if necessary
- Clean out any carbon buildup in the EGR system
How to erase DTC P1401 on Ford
To erase DTC P1401 on a Ford, you can:
- Use an OBD-II scanner to clear the code after the underlying issue has been addressed
- Alternatively, disconnecting the vehicle’s battery for a few minutes may also clear the code