Ford P3409 OBD-II Trouble Code Definition: P3409 Cylinder 2 Deactivation/lntake Valve Control Circuit/Open P3409 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P3409 Cylinder 2 Deactivation/lntake Valve Control Circuit/Open Sorry no other information,Please help us to improve,Any information is appreciated.Thanks. […]