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Home >> Chevrolet >> 2009 >> HHR LT, 2.2 B, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.2L Or 2.4L - Introduction >> Description and Operation >> Engine Control Module Description >> Emissions Diagnosis For State I/M Programs
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Emissions Diagnosis For State I/M Programs

This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive levels of the following emissions:

Should this vehicles on-board diagnostic system (ECM) detect a condition that could result in excessive emissions, the ECM turns ON the malfunction indicator lamp (MIL) and stores a DTC that is associated with the condition.

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