Mike's Workshop Manuals
: Service manuals for every vehicle
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Subaru
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2018
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Impreza Base, 4D Sedan, Automatic CVT Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (Diagnostics) (P2101 To U171F)
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Diagnostic Procedure With Diagnostic Trouble Code (DTC)
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DTC P2270: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2
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Component Description
Component Description
Fig 1: Electromotive Force And Air Fuel Ratio Graph
Courtesy of SUBARU OF AMERICA, INC.
Courtesy of SUBARU OF AMERICA, INC.