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Subaru
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2008
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Impreza WRX STI F4-2.5L DOHC Turbo
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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DTC 34
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Engine Control System
Engine Control System
DTC 34 FRONT SUB SENSOR LH FAILURE
DTC DETECTING CONDITION:
Front sub sensor (LH) is faulty.
If DTC 34 is displayed, the circuit within the front sub sensor (LH) is faulty.
Replace the front sub sensor (LH).