AA116 Natural Vacuum EVAP

Natural Vacuum EVAP: Did you know that the leak standard for evaporative emissions has changed from the system being able to detect a .040 inch leak to a .020 inch leak. This change has forced vehcile manufacturers to change EVAP systems. Newer systems use a method of detection called Natural Vacuum. This new method of operation changes how vehicles perform leak checks as well as requiring new methods of diagnosing. This class covers operation and diagnosis of these systems. Unit Price $49.99

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