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Home >> Oldsmobile >> 1999 >> Bravada V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Engine Control Module >> Description and Operation >> Fuel Trim System Monitor Diagnostic Tests
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Fuel Trim System Monitor Diagnostic Tests

The fuel trim monitor diagnostic tests monitor the fuel trim values. When the diagnostic tests indicate that the fuel trim system has reached the limits of fuel control at certain engine operating conditions, a fuel trim DTC will set.
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