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Home >> Subaru >> 1988 >> XT GL, 1.8 7 >> Repair and Diagnosis >> Engine Performance >> System >> Ignition Control & Related Systems >> Component Testing >> Check Valve >> Turbo

Check Valve: Turbo

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Ensure there is airflow from air intake side to EGR vacuum valve side. Ensure there is no air flowing from thermo vacuum valve side to air intake boot side.