Emission Applications

1998 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.4L (146") 4-Cyl. SFI

PCV, EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, O2S, CEC, MIL
⁽³⁾ EVAP-CPCS, EVAP-VC, ⁽³⁾ SPK-ESC, ⁽³⁾ SPK-EST

3.1L (191") V6 SFI

PCV, EVAP, TWC, FR, ⁽³⁾ ⁽⁵⁾ EGR, ⁽³⁾ SPK, ⁽⁶⁾ HO2S, CEC, MIL
⁽³⁾ EVAP-CPCS, EVAP-VC, ⁽³⁾ SPK-ESC, ⁽³⁾ SPK-EST

3.4L (208") V6 SFI (VIN E)

PCV, ⁽³⁾ EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁷⁾ AP, ⁽⁶⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CKV, AP-VCS

3.5L (214") V6 SFI

PCV, ⁽³⁾ EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁷⁾ AP, ⁽⁶⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-VSV

3.8L (231") V6 SFI

PCV, EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁶⁾ HO2S, CEC, MIL
⁽³⁾ EVAP-CPCS, ⁽³⁾ EVAP-CVCS, EVAP-VC, ⁽³⁾ SPK-ESC, ⁽³⁾ SPK-EST

4.0L (244") V8 SFI

PCV, EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁵⁾ HO2S, CEC, MIL
⁽³⁾ EVAP-CPCS, EVAP-VC, ⁽³⁾ SPK-ESC, ⁽³⁾ SPK-EST

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	ECM/PCM controlled.

⁽⁴⁾	Linear EGR valve.

⁽⁵⁾	Equipped with 3.

⁽⁶⁾	Equipped with 2.

⁽⁷⁾	California only.