Ford P1418 OBD-II Trouble Code Definition: P1418 Split Air #1 Circuit Malfunction P1418 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P1418 Split Air #1 Circuit Malfunction Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. OBD Trouble Code P1418 Secondary Air Injection System Relay A Control Circuit High Sorry no other information,Please help us […]