Modulating Piston Displacement Sensor and quantity adjuster, checking: Notes

The quantity adjuster is an electro -magnetic swivelling positioner which is controlled by the ECM via a directed duty cycle. The eccentric shaft on the quantity adjuster moves the modulating piston on the high pressure piston thereby regulating the quantity of fuel injected.

The modulating piston displacement sensor informs the ECM of the position of Quantity Adjuster -N146- therefore determining the amount injected.