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Emission Applications

1990 Class "A" Motor Homes

Engine & Fuel System (1) Emission Control Systems & Devices (2) EGR Test No.
454" V8 Carb. PCV, ACL, EVAP, EGR, SPK, AIS, EFE 
EVAP-VC, SPK-TVS, SPK-DV
1
454" V8 TBI PCV, ACL, EVAP, TWC, FR, EGR,  (3)  SPK 
EVAP-VC, SPK-CC
1
(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) Federal emissions only.