The automobile meaning of the engine P216F Code is P for Powertrain Code – Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 1 for Fuel And Air Metering 6 – Vehicle Speed Output Circuit. F r FP Valve Position Switch-Drive Without Drive Ratio. Extreme air inflow can be produced by a vacuum leak, a dirty sensor or, an finish gas recirculation regulator not closing properly. If the tricky is not sufficient fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel compression controller. Do not drive the car with the car engine problem.