Emission Control System - Dodge D250 1990 Service Manual

Emission Control System
DODGE Turbo Diesel Page 25-1
Emission Control System
Section 25
General Information
All Federal models regardless of gross vehicle weight rating (GVWR) must meet light duty cycle emission standards.
Vehicles built for sale in California and Canada having GVWR of 3855 kg [8,500 lb] or less must meet light duty cycle
emission standards.
Vehicles built for sale in California and Canada having a GVWR of 3860 kg [8,501 lb] or more must conform to heavy
duty cycle emission standards.
All new DODGE Ram/Cummins Turbo Diesels conform to heavy duty cycle emission standards.
Emission Related Parts
Part Service Information Source
Fuel injection system components Fuel system - Section 14
Exhaust manifold Exhaust system and Intake manifold - Section 11
Intake Manifold Exhaust system and Intake manifold - Section 11
Turbocharger Exhaust system and Intake manifold - Section 11
Air filter Requires scheduled cleaning and replacement. See
Maintenance Guidelines - Section OC, Scheduled
Maintenance for Vehicle Emissions - Section OF, and
Exhaust System and intake Manifold - Section 11.