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Home >> GMC >> 1999 >> S15/T15 Sonoma P/U 2WD L4-2.2L VIN 4 >> 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 >> Engine Scan Tool Data Definitions - 1 >> Rich/Lean to Lean/Rich Ratio Sen. 1
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Rich/Lean to Lean/Rich Ratio Sen. 1

Range - 0:1-15.93:1
The Rich/Lean average is divided by the Lean/Rich average in order to find the Oxygen Sensor (O2S 1) ratio.
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