Optic Sensor for DS Injection Pump

Brand new genuine Optic sensor for all DS4 injection pumps Includes: 1 NEW Optic Sensor assembly Application: 1994 & Newer 6.5L diesel or turbo diesel vehicles with DS4 injection pump Trouble codes for optic sensor failure: OBDI DTC 17 - Low Resolution Fault DTC 18 - High Resolution Fault OBDII PO370 - High Resolution Fault PO251 - Fuel Metering Failure/Optic cam sensor failure (low resolution fault) See our other listings for the O-Ring and top cover gasket to complete installation. Aka Encoder Sensor, Optical Sensor, Optic Eye This part is NON RETURNABLE. Know what you are getting into before ordering it.