How do I fix code P0471?
A good starting point for resolving a P0471 code is to disconnect the tube that connects the pressure sensor to the exhaust manifold. Inspect the tube for any blockages. You may need to blow through the tube to see if air can pass easily through.
What is a P0471 code mean?
If the P0471 code appears, it means that the powertrain control module has detected that there is a voltage reading from the exhaust system back pressure sensor circuit that is out of the normal range. This is generally monitored in turbocharged vehicles, and those vehicles that have diesel engines.
What does code P0472 mean?
pressure sensor
A P0472 code means there is a problem with your vehicle’s electrical circuit, though the source could be electrical or mechanical. It stems from an exhaust back pressure sensor not working correctly.
What is an exhaust pressure sensor?
The Exhaust Gas Pressure Sensor is a Differential Sensor measuring the pressure difference between gas in the intake and the outtake of the Particulate Filter. This sensor is another element in the pollution regulation systems for Diesel engines imposed by European emissions regulation.
How do I fix code P0470?
Error Code P0470 keeps the vehicle from reaching its potential in power and performance. In many cases, this problem can be solved by simply replacing the malfunctioning sensor. However, you need to make sure everything is working fine before replacing the sensor.
Can you clean DPF pressure sensor?
A DPF pressure sensor is vital to the longevity of the DPF, and if the DPF becomes completely obstructed, the regeneration process will not fix it. It will need to either be removed and professionally cleaned or replaced, both options on average costing thousands of dollars.
What causes P0470?
There are five main issues that could be behind a P0470 code: The exhaust back pressure sensor is faulty. The exhaust back pressure sensor harness is shorted or completely open. There is a poor electrical connection with the exhaust back pressure sensor circuit.
Where is the DPF sensor located?
The DPF differential pressure sensor is usually mounted in the engine compartment to protect it from heat. The sensor is connected to the engine control unit (ECU) by an electrical connector and connected to the DPF via two silicon hoses.