The general definition of the engine P0080 Code is found online and it is P for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 0 for Fuel And Air Metering. 8 for Exhaust Gas Recirculation System Valve 1 and 0 for Transmission Engaged At High Throttle Angle. This car engine problem can be started due to the Open or short in wiring harness for control solenoid. The problem can be cause of ECM failure. Loose connector or poor electrical connection is another reason and Failed exhaust valve control solenoid is also a reason for solving the car engine problem.