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Impala LS
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Repair and Diagnosis
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Engine Control System Self-Diagnostics - 3.8L
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Diagnostic Tests
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DTC P0442: EVAP Control System Small Leak Detected
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Diagnostic Procedures
Diagnostic Procedures
Fig 1: DTC P0442: Evaporative Emissions System Small Leak Detected (Steps 1-4)
Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0442: Evaporative Emissions System Small Leak Detected (Steps 5-7)
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.
Courtesy of GENERAL MOTORS CORP.