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Home >> Isuzu >> 1984 >> Impulse Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - ISUZU I-TEC >> Testing >> Fuel Pressure >> Low Fuel Pressure

Low Fuel Pressure

Apply battery voltage directly to fuel pump connector with jumper wires. Positive lead goes to Red wire and negative lead goes to Black wire. If pressure reaches normal, check pump circuit and relay.