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2001
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Bonneville V6-3.8L SC VIN 1
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data, Normal Values and Definitions
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Scan Tool Data Definitions - Powertrain Systems
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Fuel Trim Cell
Fuel Trim Cell
The scan tool range is 0-9. Fuel trim cell is dependent upon engine speed and MAF sensor readings. A plot of RPM vs.
MAF
is divided into 10 cells. Fuel trim cell indicates which cell is currently active.