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Home >> Cadillac >> 2001 >> Eldorado Touring 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 >> HO2S Bank 1 Sensor 1
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HO2S Bank 1 Sensor 1

The scan tool range is 0-1275 mV (0-1.275 volts). This parameter indicates the output voltage for Heated Oxygen Sensor (HO2S) bank 1 sensor 1 (rear bank fuel control oxygen sensor). The voltage should fluctuate constantly within a range between about 50 mV (lean exhaust) and 800 mV (rich exhaust) while operating in Closed Loop.
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