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Home >> Cadillac >> 1999 >> Seville STS V8-4.6L VIN 9 >> 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

Display shows Air Fuel Ratio from 0 to 1 to 25.5 to 1. Display indicates the air fuel ratio based on oxygen sensor inputs. The PCM uses fuel trims to adjust fueling to attempt to maintain an air fuel ratio of 14.7 to 1.
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