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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System & Fuel System - 1.8L (Lay) - Introduction) >> Description and Operation >> Fuel System Description >> Base Air/Fuel Ratio Compensation

Base Air/Fuel Ratio Compensation

WARNING: This page is about a different variant/trim than selected.

The base air/fuel ratio may vary due to differences in individual engines and mileage. In order to compensate for such variations, feedback information is used to adjust the base air/fuel mixture to maintain the optimum air/fuel ratio.