Emission Applications

1999 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

1.6L (98") 4-Cyl. MFI (VIN 6)

PCV, EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-TPCS, EVAP-VC, SPK-CC

2 or 3

2.0L (122") 4-Cyl. MFI (VIN C)

PCV, ⁽⁴⁾ EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-TPCS, EVAP-VC, SPK-CC

2 or 3

2.2L (134") 4-Cyl. SFI (VIN 4)

PCV, ⁽⁴⁾ EVAP, TWC, FR, ⁽⁴⁾ SPK, HO2S, O2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST

2 or 3

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

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

2 or 3

4.3L (262") V6 SFI (VIN W & X)

PCV, ⁽⁴⁾ EVAP, ⁽⁶⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽⁷⁾ AP, ⁽⁸⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CS

2 or 3

4.8L (293") V8 SFI (VIN V)

PCV, ⁽⁴⁾ EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽⁴⁾ ⁽⁹⁾ AP, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CS

2 or 3

5.0L (305") V8 SFI (VIN M)

PCV, ⁽⁴⁾ EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽¹¹⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST, SPK-ESC

2 or 3

5.3L (323") V8 SFI (VIN T)

PCV, ⁽⁴⁾ EVAP, ⁽¹²⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽⁴⁾ ⁽⁹⁾ AP, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CS

2 or 3

5.7L (350") V8 SFI (VIN R)

PCV, ⁽⁴⁾ EVAP, ⁽¹²⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST

2 or 3

6.0L (366") V8 SFI (VIN U)

PCV, ⁽⁴⁾ EVAP, ⁽¹²⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽⁴⁾ ⁽⁹⁾ AP, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CS

2 or 3

7.4L (454") V8 SFI (VIN J)

PCV, ⁽⁴⁾ EVAP, ⁽¹²⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽¹³⁾ AP, ⁽¹²⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST

2 or 3

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.3L (262") V6 SFI (VIN W & X)

PCV, ⁽⁴⁾ EVAP, OC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽¹¹⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST

2 or 3

5.7L (350") V8 SFI (VIN R)

PCV, ⁽⁴⁾ EVAP, ⁽¹²⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST

2 or 3

6.0L (366") V8 SFI (VIN U)

PCV, ⁽⁴⁾ EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, ⁽⁴⁾ SPK, ⁽⁴⁾ ⁽⁹⁾ AP, ⁽¹⁰⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-ESC, SPK-EST, AP-CS

2 or 3

7.4L (454") V8 SFI (VIN B & D)

PCV, EVAP, TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, SPK, ⁽¹²⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST

2 or 3

7.4L (454") V8 SFI (VIN J)

PCV, EVAP, ⁽¹⁴⁾ TWC, FR, ⁽⁴⁾ ⁽⁵⁾ EGR, SPK, ⁽¹⁶⁾ AP, ⁽¹⁵⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-CVCS, EVAP-VC, SPK-EST

2 or 3

⁽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 - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	PCM/VCM controlled.

⁽⁵⁾	Linear EGR valve.

⁽⁶⁾	May be equipped with 2.

⁽⁷⁾	"C", "K", "S" & "T" Series only.

⁽⁸⁾	Equipped with 3 (Except Sierra & Silverado). Sierra & Silverado Equipped with 4.

⁽⁹⁾	Some models.

⁽¹⁰⁾	Equipped with 4.

⁽¹¹⁾	Equipped with 3.

⁽¹²⁾	Equipped with 2.

⁽¹³⁾	California only.

⁽¹⁴⁾	Equipped with 2, except "P" series equipped with 1.

⁽¹⁵⁾	Equipped with 4, except "P" series equipped with 2.

⁽¹⁶⁾	On "C", "G" & "K" models.