GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Emission Hose Routing (VIN K)


Object Number: 155265  Size: SH
(1)To Vacuum Brake Booster
(2)To Accessory
(3)To EVAP Canister
(4)Throttle Body
(5)Fuel Pressure Regulator
(6)EVAP Canister Purge Solenoid Valve
(7)EVAP Service Port
(8)PCV Valve
(9)Intake Manifold
Figure 2:

Emission Hose Routing (VIN 1)


Object Number: 202160  Size: SH
(1)To EVAP Canister (At Rear of Vehicle)
(2)PCV Valve
(3)To Vacuum Brake Booster
(4)Throttle Body
(5)Supercharger Bypass Actuator (Bypass Valve Actuator)
(6)Supercharger Bypass Solenoid (Boost Control Solenoid)
(7)Fuel Pressure Regulator
(8)Supercharger Assembly
(9) EVAP Canister Purge Valve
(10)Manifold Absolute Pressure (MAP) Sensor
Figure 3:

EVAP Control System Overview


Object Number: 200517  Size: LF
(1)EVAP Vent Valve/Solenoid
(2)EVAP Vent Valve/Solenoid Ignition Feed Circuit Terminal
(3)EVAP Vent Valve/Solenoid Control Circuit Terminal
(4)EVAP Vent Valve/Solenoid Filter
(5)EVAP Vapor Lines
(6)Fuel Tank Pressure Sensor
(7)Fuel Tank Pressure Sensor Ground Circuit Terminal
(8)Fuel Tank Pressure Sensor Signal Circuit Terminal
(9)Fuel Tank Pressure Sensor Circuit 5 Volt Reference Circuit Terminal
(10)Fuel Filler Pipe
(11)Check Valve (Spitback)
(12)Modular Fuel Sender Assembly
(13)Fuel Limiter Vent Valve (FLVV)
(14)Pressure/Vacuum Relief Valve (Optional)
(15)EVAP Canister
(16)EVAP Canister Purge Valve/Solenoid Ignition Feed Circuit Terminal
(17)EVAP Canister Purge Valve/Solenoid Control Circuit Terminal
(18)Intake Manifold Vacuum Source
(19)EVAP Canister Purge Valve/Solenoid
(20)EVAP Service Port