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Home >> Chevrolet >> 1999 >> Express 1 Ton Van V8-5.7L VIN R >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> AIR Fuel Ratio
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AIR Fuel Ratio

Range (0.0:1-25.5:1)
The scan tool indicates the VCM calculated air to fuel ratio. The typical air to fuel ratio is 14.7:1.
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