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Optima EX
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control System Diagnosis (3 Of 3) - 2.4L (Except HEV)
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DTC P2270: O2 Sensor Signal Stuck Lean (Bank 1/Sensor 2)
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ETM
DTC P2270: O2 Sensor Signal Stuck Lean (Bank 1/Sensor 2): ETM
Refer to the appropriate SYSTEM WIRING DIAGRAMS article.