3100 HEUI Diesel Truck Engine Hydraulic Oil (Injection Actuation Pressure Control Valve)

(1) Fuel pump. (2) Injection actuation pressure control valve (IAPCV). (3) Oil accumulator. (4) Gear. (5) High pressure oil pump.

The Injection Actuation Pressure Control Valve (IAPCV) is an electronically operated control valve which closely controls the hydraulic pump output pressure by bypassing excess flow to the return circuit. A variable signal current from the ECM to the IAPCV determines pump output pressure. The IAPCV (2) is located on the front right side of the engine and is connected to the high pressure oil pump (5).

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