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Home >> GMC >> 2000 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Control System - Theory & Operation) >> Fuel Systems >> Fuel Delivery >> Base Air/Fuel Ratio Compensation

Base Air/Fuel Ratio Compensation

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

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.

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