NOTE: If codes 168-xx or 723-xx active, fix those first.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3662 FMI 6 (MCM) Injector Cylinder #4 Amplifier Control Valve – Valve Circuit
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3662 FMI 5 (MCM) Injector Cylinder #4 Amplifier Control Valve Abnormal Operation (Open)
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3662 FMI 4 (MCM) Injector Cylinder #4 Amplifier Control Valve Abnormal Operation (MIN)
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3662 FMI 3 (MCM) Injector Cylinder #4 Amplifier Control Valve Abnormal Operation (MAX)
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3661 FMI 6 (MCM) Injector Cylinder #3 Amplifier Control Valve, Valve Shorted Circuit
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3661 FMI 5 (MCM) Injector Cylinder #3 Amplifier Control Valve Abnormal Operation (Open)