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Emission Control: Notes

The ECM electrically controls the following emission control systems: Air Injection Reaction (AIR) Management (except 2.5L TBI), Exhaust Gas Recirculation (EGR) on 4.3L, 5.0L and 5.7L models, and Evaporative Emission Control (EEC) on 4.3L, 5.0L and 5.7L models.

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