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Home › Ford › 1990 › Taurus L, 4D Sedan, 2.5 D › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes - 2.5L › Test H - Fuel Control › Code 86 › Code 43

Code 43

Low fuel pressure at WOT, fuel pump or restricted supply.
Low fuel flow at WOT, injectors plugged or low battery voltage (less than 11 volts).