Some info about Accelerator Pedal Position Sensors (APPS):
This sensor is used to on your vehicle in place of a traditional throttle cable. Mounted on your gas pedal, it measures the driver's input on the gas pedal.
w/Detroit Diesel Electronic Control (DDEC) System III or IV w/WM526 Series Pedals wo/Idle Validation Switch Eng Mfr: Detroit Diesel
1993 Freightliner FLD120 equipped with 9L V6 Diesel, 12.7L L6 Diesel Turbo/Aftercooled, 11.1L L6 Diesel Turbo/Aftercooled
w/Detroit Diesel Electronic Control (DDEC) System III or IV w/WM526 Series Pedals wo/Idle Validation Switch Eng Mfr: Detroit Diesel