I have a Subaru Legacy Model BF5, Engine EJ20, Single Turbo, A/T 2.0 4WD. There's no check engine light but the fuel consumption is extremely high. Current consumption is 5km per litre. What would the problem be?
Optional Information: 1993 Subaru BF5 EJ20
Already Tried: Iridium IX Spark Plugs, New Air Filter, Synthetic Oil
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