Emission Applications

1999 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.1L (191") V6 SFI (VIN M)

PCV, ⁽³⁾ EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁵⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, ⁽⁷⁾AP-CKV, ⁽⁷⁾AP-VCS

3.8L (231") V6 SFI (VIN K)

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

3.8L (231") V6 SC SFI (VIN 1)

PCV, ⁽³⁾ EVAP, TWC, FR, ⁽³⁾ ⁽⁴⁾ EGR, ⁽³⁾ SPK, ⁽⁵⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-VC, SPK-ESC, 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 2.

⁽⁶⁾	May be equipped with 2 or more sensor.

⁽⁷⁾	Federal only.