Subaru P0473 Exhaust Pressure Sensor High

Description

OBD-II Trouble Code Description for P0473 Subaru

Exhaust Pressure Sensor High

What does this mean?

OBD2 Code P0473 Subaru definition:
The exhaust back pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt 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.

Symptoms

Possible sumptoms of OBD code P0473 Subaru
– Engine Light ON (or Service Engine Soon Warning Light)

Causes

Possible causes of OBD code P0473 Subaru
– Exhaust Back Pressure Sensor The Error code is generally activated on detection of the following conditions: 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.

Possible Solutions

Replacing the exhaust back pressure usually takes care of the problem


The OBD2 Code Information Be Applicable For Subaru:

2013 Subaru WRX Concept,2013 Subaru Viziv Concept,2013 Subaru Outback,2013 Subaru Legacy,2013 Subaru Impreza,2013 Subaru BRZ,2012 Subaru XV,2012 Subaru Impreza,2011 Subaru XV Concept,2011 Subaru Outback,2011 Subaru Impreza,2011 Subaru Forester,2010 Subaru Legacy,2010 Subaru Impreza,2009 Subaru Impreza,2008 Subaru Impreza,2008 Subaru Forester,2006 Subaru Impreza,2005 Subaru R1,2005 Subaru Pleo,2004 Subaru Impreza,2004 Subaru Forester,2003 Subaru Traviq

Note:

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