Seat P0402 Exhaust Gas Recirculation Flow Excessive Detected

Description

OBD-II Trouble Code Description for P0402 Seat

Exhaust Gas Recirculation Flow Excessive Detected

What does this mean?

OBD2 Code P0402 Seat definition:
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor (DPF). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0402 Seat code means that OBD detected an excessive amount of EGR.

Symptoms

Possible sumptoms of OBD code P0402 Seat
You may notice drivability problems such as the engine may surge off idle. There may also be other symptoms.

Causes

Possible causes of OBD code P0402 Seat
A code P0402 Seat most likely means one or more of the following has happened: The DPFE (differential pressure) sensor is faulty and needs to be replaced There is a blockage in the EGR (most likely carbon buildup) The EGR valve is faulty The EGR valve may not be opening due to a lack of vaccuum

Possible Solutions

With a P0402 Seat, it is common for people to replace the EGR valve, only to have the problem return. The most likely solution is to replace the DPFE sensor. Check the voltage at the DPFE sensor both at idle and when the EGR is open Replace the DPFE sensor

Related Codes

P0400 Seat P0401 Seat P0403 Seat


The OBD2 Code Information Be Applicable For Seat:

2013 Seat Mii,2013 Seat Leon,2013 Seat Ibiza Cupra,2013 Seat Ibiza,2012 Seat Toledo Concept,2012 Seat Exeo ST,2012 Seat Exeo,2012 Seat Alhambra 4WD,2011 Seat Ibiza,2010 Seat Ibiza,2009 Seat Leon,2009 Seat Ibiza,2009 Seat Altea,2007 Seat Altea,2006 Seat Leon,2006 Seat Ibiza,2005 Seat Toledo,2005 Seat Altea,2004 Seat Ibiza,2004 Seat Cordoba,2002 Seat Ibiza

 

Note:

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