What Does P0472 Mean? The 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. engine code P0472P0472 fixobd P0472dtc P0472obd code P0472obd2 P0472P0472 car codediagnostic code P0472car code P0472check engine code P0472fehlercode P0472P0472 fiatcodigo P0472codigo falla P0472P0472 kody b??dówcodigo de falla P0472 What are the common causes of P0472 ? There are a number of reasons you could be seeing the P0472 code displayed: An exhaust back pressure sensor that is no longer working correctly The exhaust back pressure sensor is suffering from a poor electrical connection The exhaust back pressure sensor harness is shorted or open There is an open in signal circuit occurring between the PCM and exhaust pressure sensor There is an open between the PCM and the exhaust pressure sensor in the power supply Short of power to ground in the signal circuit to the exhaust pressure sensor A faulty exhaust pressure sensor internally shorted to the ground The PCM has failed internally (this is the least likely reason) How do you troubleshoot P0472 ? Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition. Searches related to P0472 - Exhaust Pressure Sensor Low p0472 code 6.4 powerstroke p0472 cummins p0472 6.0 powerstroke p0472 audi a4 exhaust pressure sensor 6.0 powerstroke p0472 mazda exhaust back pressure sensor 6.7 cummins mazda 6 exhaust pressure sensor
