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2001
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Firebird V6-3.8L VIN K
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data Definitions - Powertrain Systems
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Fuel Trim Cell
Fuel Trim Cell
The scan tool displays 0-9 Fuel Trim
(FT)
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.