P0473 FORD code

What the P0473 code means. This code is triggered when the PCM detects an irregular voltage reading from the exhaust system back pressure sensor circuit. The abnormal voltage could be either too high or too low. Exhaust pressure is typically monitored in diesel and turbocharged gasoline engines.

How do you check exhaust pressure sensor?

If you want to check the sensor while it’s still attached to your vehicle, use a multimeter and vacuum pump to test the pressure and voltage readings. Otherwise, you can remove the sensor and test the electrical resistance between the ports.

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. The outtake may be directly set to ambient pressure depending on the model.

What is code P0471?

What the P0471 code means. 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.

Can you clean a 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.

How much does it cost to replace a DPF sensor?

The cost of a diesel particulate filter replacement can vary greatly depending on engine power and vehicle make. However, the average DPF replacement cost is around £1,000-£2,000 in the UK. However, the usual price range can be between £750-£3,000.