Emission Hose Routing Diagram

Fig 1: Emission Vacuum Hose Routing

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Manifold Absolute Pressure (MAP) Sensor
2	EVAP Canister Purge Hose
3	EVAP Service Port
4	Positive Crankcase Ventilation (PCV) Valve
5	Throttle Body
6	EVAP Canister Purge Valve
7	AIR Module, if equipped