P0471 Dodge Possible Causes
- Faulty Exhaust Back Pressure Sensor
- Exhaust Back Pressure Sensor harness is open or shorted
- Exhaust Back Pressure Sensor circuit poor electrical connection
P0471 Dodge Tech NotesReplacing the exhaust back pressure usually takes care of the problem.
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Cost of diagnosing the P0471 Dodge code
Labor: 1.0The cost of diagnosing the P0471 Dodge code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?An Exhaust Back Pressure (EBP) signal that is detected out of range (high or low) by the Engine Control Module (ECM) will cause the engine to ignore the EBP signal and disable exhaust back pressure operation.
P0471 Dodge Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0471 Dodge MeaningThe Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Engine Control Module (ECM), produces a linear analog voltage signal that indicates pressure.
The EBP sensor's primary function is to measure exhaust back pressure so that the ECM can control the exhaust back pressure regulator (EPR) when needed.