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Emission Applications

1990 Corvette (Domestic Cars)

Engine & Fuel System (1) Emission Control Systems & Devices (2) EGR Test No.
5.7L (350") V8 MFI PCV,  (3)  EVAP,  (4)  TWC+OC, FR, BP/EGR, SPK, AIS, O2S, CEC 
EVAP-VC, EVAP-CPCS, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV		 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 - CARS in EGR FUNCTION TESTING section. Use specified test number.
(3) California emissions only.
(4) Federal emissions only.
1990 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System (1) Emission Control Systems & Devices (2) EGR Test No.
2.2L (135") 4-Cyl. TBI PCV, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC, MIL 
EVAP-VC, SPK-CC		 2 or 3
2.3L (140") 4-Cyl. MFI PCV, EVAP, TWC, FR, SPK, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCS, SPK-CC		 ...
2.5L (151") 4-Cyl. TBI PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCV, SPK-CC		 2 or 3
3.lL (191") V6 MFI PCV, EVAP, TWC, FR, EGR, SPK,  (3) (4)  AP, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCS, EVAP-TPCV, SPK-CC		 1 or 9
5.0L (305") V8 MFI PCV, EVAP, TWC+OC, FR, BP/EGR, SPK, AP, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-CS, SPK-CC, AP-AMV		 2 or 3
5.0L (305") V8 TBI PCV, ACL, EVAP, TWC+OC, FR, BP/EGR, SPK, AP, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-CS, SPK-CC, (5) AP-AMV, (6) AP-ACV		 2 or 3
5.0L (307") V8 4-Bbl. PCV, ACL, EVAP, TWC+OC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE, MIL 
EVAP-VC, EVAP-CPCS, EVAP-CPCV, BP/EGR-CS, SPK-CC, AP-AMV, AP-ACV, EFE-TVS		 2 or 3
5.7L (350") V8 TBI PCV, EVAP, TWC+OC, FR, BP/EGR, SPK, AP, O2S, CEC, MIL 
EVAP-VC, EVAP-CPCS, EVAP-TPCS, BP/EGR-CS, SPK-CC, AP-AMV		 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 - CARS in EGR FUNCTION TESTING section. Use specified test number.
(3) Electronically controlled.
(4) Camaro & Firebird.
(5) Some applications.
(6) California only.
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