Circuit/System Description

For an overview of the component/system, refer to:

• Crankcase Ventilation System Description
• Engine Component Description (LT4)Engine Component Description (LT1)
• Exhaust Tail Pipe Flow Control System Description and Operation

The purpose of the Component/System Leak Test is to aid in finding an air leak in the component/system. The following are examples of where leaks can occur.The list is not all encompassing

• B65 Intake Manifold Pressure and Air Temperature Sensor - {LT4}
• B74 Manifold Absolute Pressure Sensor - {LT1}
• B75C Multifunction Intake Air Sensor
• B105 Supercharger Inlet Pressure Sensor - {LT4}
• Air Cleaner Housing & Air Cleaner Outlet Duct
• Exhaust System
• Intake Manifold/Gasket
• Positive Crankcase Ventilation System