Emission Applications

1998 General Motors - Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

7.4L (454") V8 SFI

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

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

⁽³⁾	Vapor canister type.

⁽⁴⁾	Linear EGR valve.

⁽⁵⁾	Equipped with 2.