DE - Exhaust Back Pressure (EBP) Sensor

Signal Functions
The Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volts reference signal from the Powertrain Control Module (PCM), produces a linear analog voltage signal that indicates pressure.

The EBP sensor's primary function is to measure exhaust back pressure so that the PCM can control the Exhaust Back Pressure Regulator (EPR) when needed.

Detection/Management
An EBP signal that is detected out of range (high or low) by the PCM will cause the engine to ignore the EBP signal and disable exhaust back pressure operation.






Note
After removing connectors always check for damaged pins, corrosion, loose terminals, etc.

DTC Descriptions
P0470 = EBP sensor circuit malfunction
P0471 = EBP sensor circuit performance
P0472 = EBP sensor circuit low input
P0473 = EBP sensor circuit high input
P0478 = EBP excessive during normal driving








Tables and Graphs

DE1 - DE4:

DE5 - DE8:

DE9 - DE13:

DE14 - DE17:

DE18 - DE20: