Isuzu 2000 Trooper Workshop Manual page 922

4. Select F3: Fuel System in the Miscellaneous Menu.
5. Select F0: Fuel Trim Enable.
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
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6. Push "Disable" or "Enable" soft key.
7. Control Fuel Trim and check data list.
8. If data list changes, the Fuel Trim is normal.
9. Select F1: Fuel Trim Reset.
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