Description
OBD-II Trouble Code Description for P0402 Ford
Exhaust Gas Recirculation Flow Excessive Detected
What does this mean?
OBD2 Code P0402 Ford 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 Ford code means that OBD detected an excessive amount of EGR.
Symptoms
Possible sumptoms of OBD code P0402 Ford
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 Ford
A code P0402 Ford 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 Ford, 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
The OBD2 Code Information Be Applicable For Ford:
2013 Ford Taurus,2013 Ford Mustang,2013 Ford Kuga,2013 Ford Fusion,2012 Ford Focus,2011 Ford Mondeo,2011 Ford Focus,2011 Ford Edge,2010 Ford Mustang,2009 Ford Focus,2008 Ford Fiesta,2008 Ford Escape,2007 Ford Mondeo,2006 Ford Focus,2005 Ford Mustang,2005 Ford Escape,2003 Ford Mustang,2003 Ford Focus,2000 Ford Mustang
Note:
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