GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Emission Hose Routing Diagram
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