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Home >> Mazda >> 1990 >> 626 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Turbocharger Oil Passage Inspection
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Turbocharger Oil Passage Inspection

Engine must be cool. Remove oil return pipe. Verify oil passage in turbocharger or oil return pipe is not blocked with carbonized oil. Replace turbocharger and return pipe if necessary.