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Home >> Subaru >> 1985 >> GL 2D Hatchback, 1.8 4, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Spark Control System >> Component Testing >> Check Valve >> Fuel Injected Turbo Models

Fuel Injected Turbo Models

Ensure there is air flow from the air intake side to the thermo vacuum valve side. Then, ensure there is no air flow from the thermo vacuum valve side to the air intake boot side.