GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1996 🢒 Ninety Eight 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Emission Hose Routing Diagram
Figure 1:

Pontiac H-Car with VIN 1
Object Number: 15991 Size: SH
(1)EVAP Vacuum Switch
(2)PCV Valve
(3)To Accessory
(4)To Vacuum Brake Booster
(5)Throttle Body
(6)To Transaxle
(7)EVAP Canister
(8)To Fuel Tank
(9)Supercharger Bypass Solenoid (Boost Control Solenoid)
(10)Supercharger Bypass Actuator (Bypass Valve Actuator)
(11)Manifold Vacuum Source
(12)Fuel Pressure Regulator
(13)Supercharger Assembly
(14)MAP Sensors (2)
(15)EVAP Canister Purge Valve
Figure 2:

C/H-Car with VIN 1
Object Number: 15971 Size: SH
(1)EVAP Vacuum Switch
(2)PCV Valve
(3)To Accessory
(4)To Vacuum Brake Booster
(5)Throttle Body
(6)To Transaxle
(7)EVAP Canister
(8)To Fuel Tank
(9)Supercharger Bypass Solenoid (Boost Control Solenoid)
(10)Supercharger Bypass Actuator (Bypass Valve Actuator)
(11)Manifold Vacuum Source
(12)Fuel Pressure Regulator
(13)Supercharger Assembly
(14)MAP Sensor
(15)EVAP Canister Purge Valve
Figure 3:

C-Car with VIN K
Object Number: 15876 Size: SH
(1)To Accessory
(2)Throttle Body
(3)To Transaxle
(4)EVAP Canister
(5)To Fuel Tank
(6)EVAP Vacuum Switch
(7)EVAP Canister Purge Valve
(8)Fuel Pressure Regulator
(9)PCV Valve
(10)Intake Manifold
(11)To Vacuum Brake Booster
Figure 4:

H-Car with VIN K
Object Number: 12847 Size: SH
(1)Intake Manifold
(2)To Vacuum Brake Booster
(3)To Vacuum Storage Tank
(4)Throttle Body
(5)To Transaxle
(6)EVAP Canister
(7)To Fuel Tank
(8)To Vent Solenoid
(9)EVAP Service Port
(10)EVAP Canister Purge Valve
(11)Fuel Pressure Regulator
(12)PCV Valve