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Home >> Chevrolet >> 1999 >> Tracker 4WD L4-1.6L VIN 6 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Vehicle On-Board & Scan Tool Diagnostics >> Engine Scan Tool Data Definitions >> HO2S 1 Ready
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HO2S 1 Ready

A Yes display indicates that the oxygen sensor is warmed up and is capable of sending useful voltage readings to the PCM. A No display indicates a cold (not ready) oxygen sensor.
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