Hello,
Here are the code defs.....
P0404 Exhaust Gas Recirculation Circuit Range/Performance
P0405 Exhaust Gas Recirculation Sensor A Circuit Low
P0406 Exhaust Gas Recirculation Sensor A Circuit High
It is located on the passenger side just below and behind the alternator. It looks similar to the pic below...
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Sunday, March 1st, 2009 AT 8:09 PM