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Home >> Isuzu >> 2003 >> Ascender 4.2 S, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 4.2L >> Fuel Systems >> Fuel Injector Circuit Diagnosis >> Circuit Description
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Circuit Description

PCM enables appropriate fuel injector on intake stroke for each cylinder. A voltage is supplied directly to fuel injectors. PCM controls each fuel injector by grounding control circuit via a solid state device called a driver.