P0471 - OBD II Trouble Code

Our automotive experts have put together the following information about the P0471 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0471 code.

What Does P0471 Code Mean?

OBD-II Code P0471 is defined as a Exhaust Pressure Sensor "A" Circuit Range/Performance

The Exhaust Pressure Sensor tells the engine control module (PCM) how much pressure is in the exhaust manifold. If the PCM determines there is an incorrect signal from the Exhaust Pressure Sensor, the PCM will set code P0471.

Common Problems That Trigger the P0471 Code

• Exhaust pressure sensor failure
• Powertrain Control Module (PCM) failure
• Wiring issue