DPFE Sensor Upstream Hose Off or Plugged
2000-2005 Ford Excursion 6.8L V10 Triton
Description
The DPFE sensor upstream hose is disconnected or plugged. This prevents the sensor from accurately measuring exhaust backpressure before the EGR orifice.
Symptoms
- Check Engine Light
- Poor EGR flow control
- Rough idle
- Failed emissions
- Reduced power
Common Causes
- Disconnected upstream DPFE hose
- Plugged upstream DPFE hose (carbon buildup)
- Cracked hose
- Faulty DPFE sensor
Diagnostic Steps
- Visually inspect upstream DPFE hose (hose closer to exhaust manifold)
- Check for carbon blockage in hose
- Blow through hose to verify flow
- Replace hose if cracked or deteriorated
- Test DPFE sensor if hoses are OK
Repair Notes
Reconnect or replace DPFE upstream hose. Clean carbon from hose. Replace DPFE sensor if hoses are good.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1405 on Other Vehicles
Common Questions
What does code P1405 mean on a 2000-2005 Ford Excursion?
P1405 stands for "DPFE Sensor Upstream Hose Off or Plugged". The DPFE sensor upstream hose is disconnected or plugged. This prevents the sensor from accurately measuring exhaust backpressure before the EGR orifice.
What are the symptoms of P1405 on a Ford Excursion?
Common symptoms of P1405 include: Check Engine Light, Poor EGR flow control, Rough idle, Failed emissions, Reduced power.
What causes P1405 on a 2000-2005 Ford Excursion?
Common causes of P1405 include: Disconnected upstream DPFE hose, Plugged upstream DPFE hose (carbon buildup), Cracked hose, Faulty DPFE sensor.