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Home >> Oldsmobile >> 1989 >> Custom Cruiser >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - 2.8L/3.1L PFI >> Operation >> Air Induction System
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Air Induction System

Air is drawn into the induction system through an air pick-up duct. This ensures intake air temperature is lower than engine compartment temperatures, resulting in denser air supply to combustion chambers. Air intake duct provides turbulence free airflow for accurate measurement at the MAF sensor. Rubber boot between MAF sensor and throttle body prevents this air leakage. Duct between MAF and throttle body must be air tight. Air entering behind the MAF sensor will not be measured, causing a lean air/fuel mixture.