Description
OBD-II Trouble Code Description for P0400 Peugeot
Exhaust Gas Recirculation Flow
What does this mean?
OBD2 Code P0400 Peugeot definition:
The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set.
Symptoms
Possible sumptoms of OBD code P0400 Peugeot
No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). However, non visible symptoms will be increased combustion temperature and increased Nox emissions. Sometimes you may notice a flat spot, or the vehicle may enter limp mode or show a EML light.
Causes
Possible causes of OBD code P0400 Peugeot
A code P0400 Peugeot may mean that one or more of the following has happened: Plugged EGR passage which restricts the flow of exhaust gasses Faulty EGR solenoid Faulty EGR solenoid wiring/harness Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve Faulty EGR valve
Possible Solutions
Since EGR valve designs are different, no one test will suffice: Using a scan tool, operate the EGR valve with the engine running. If the engine stumbles, the problem was likely intermittent wiring problem or intermittent blockage problem If engine doesn’t stumble, operate the EGR valve manually, if possible. If engine doesn’t stumble and die, the ports are likely plugged. Removal of valve and cleaning of all ports will be required Checking of solenoid can only usually be done with a scan tool, because most solenoids operate with a duty cycle of voltage, rather than constant voltage Check all vacuum lines, hoses, etc for any damage Visually inspect the solenoid harness and the solenoid for damage Replace EGR valve
The OBD2 Code Information Be Applicable For Peugeot:
2013 Peugeot 508,2013 Peugeot 4008,2013 Peugeot 308,2013 Peugeot 208,2013 Peugeot 107,2012 Peugeot 308,2012 Peugeot 208,2011 Peugeot 508,2011 Peugeot 408,2011 Peugeot 308,2010 Peugeot 207,2010 Peugeot 207,2009 Peugeot 407,2009 Peugeot 308,2009 Peugeot 206,2009 Peugeot 107,2008 Peugeot 308,2008 Peugeot 207,2007 Peugeot 308,2007 Peugeot 207,2006 Peugeot 407,2006 Peugeot 207,2006 Peugeot 206,2005 Peugeot 407,2005 Peugeot 307,2005 Peugeot 206,2005 Peugeot 107,2005 Peugeot 1007,2004 Peugeot 607,2004 Peugeot 407,2004 Peugeot 206,2003 Peugeot 307,2003 Peugeot 206
Note:
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