Emission Applications

1987 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.0L (122") 4-Cyl. TBI

PCV, ACL, ⁽³⁾ EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, ⁽³⁾ EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC

2 or 3

2.8L (173") V6 MFI

PCV, EVAP, TWC, FR, ⁽⁴⁾ EGR, SPK, ⁽⁵⁾ AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EGR-CS, SPK-CC

1 or 7

3.0L (181") V6 MFI

PCV, EVAP, TWC, FR, ⁽⁴⁾ EGR, SPK, O2S, CEC
EVAP-VC, EVAP-CPCS, SPK-CC

1 or 7

3.8L (231") V6 MFI

PCV, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, BP/EGR-CS, SPK-CC

2 or 3

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽⁴⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EGR-CS, ⁽⁶⁾ SPK-ESC, AP-AMV, EFE-TVS, TK

1 or 7

⁽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⁾	Vapor canister type.

⁽⁴⁾	Electronically controlled.

⁽⁵⁾	Refer to underhood emissions label.

⁽⁶⁾	Some models.