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Subaru
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1995
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Impreza Coupe AWD F4-1820cc 1.8L SOHC
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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 56
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Engine Control System
Engine Control System
DTC 56
EXHAUST GAS RECIRCULATION (EGR) SYSTEM
Diagnosis
Faulty Exhaust Gas recirculation
(EGR)
System function.
Trouble Symptom
Poor driving performance on low Engine speed.