Error code P2040

cnels

New Member
Hey guys.New to the forum and to Hondas.I bought a 2001 Civic LX,a couple weeks ago.Love the car and it was in great shape.I had it throw a fault code P2040 today. Anybody had this ,and know what the fix may be? The explanation was "Reductant Injection Air Pressure Sensor A Circuit High " I dont really know what that is? Thanks for any clarification!
 


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