isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Pressure, Vacuum and Temperature Specifications|Page 1532 > < Pressure, Vacuum and Temperature Specifications|Page 1530
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Fuel Pressure: Testing and Inspection

Fuel System Diagnosis

Circuit Description

When the ignition switch is turned "ON," the powertrain control module (PCM) will turn "ON" the in-tank fuel pump. The in-tank fuel pump will
remain "ON" as long as the engine is cranking or running and the PCM is receiving 58X crankshaft position pulses. If there are no 58X crankshaft

Pressure, Vacuum and Temperature Specifications|Page 1532 > < Pressure, Vacuum and Temperature Specifications|Page 1530