Description
OBD-II Trouble Code Description for P0400 Mini
Exhaust Gas Recirculation Flow
What does this mean?
OBD2 Code P0400 Mini 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 Mini
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 Mini
A code P0400 Mini 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 Mini:
2013 Mini Vision Concept,2013 Mini Roadster,2013 Mini Cooper,2013 Mini Countryman,2013 Mini Clubvan Camper,2013 Mini Clubvan,2013 Mini Clubman Bond Street,2012 Mini Rocketman Concept,2012 Mini Coupe,2012 Mini Clubvan Concept,2012 Mini Bayswater,2012 Mini Baker Street,2011 Mini WRC,2010 Mini Scooter,2009 Mini Cooper,2008 Mini One,2008 Mini Cooper,2008 Mini Clubman,2007 Mini Cooper,2006 Mini Concept,2005 Mini Cooper,2004 Mini XXL,2004 Mini Cooper,2002 Mini Cooper,2000 Mini Seven,2000 Mini Cooper
Note:
1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Mini makes.
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