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C Tahoe 2WD V8-5.3L VIN T
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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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AIR Fuel Ratio
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
AIR Fuel Ratio
The scan tool displays the ratio of the air to fuel. A typical ratio is about 14.7:1.