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DTC P2270: Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Lean
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DTC P2270: Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Lean: Notes
Fig 1: Secondary Heated Oxygen Sensor - Circuit Diagram
Fig 2: Secondary Heated Oxygen Sensor Output Voltage Graph