E1389 – Aftertreatment #1 SCR Operator Inducement This code is an inducement associated with an emissions system fault. ... An E1389 or 5246 code will come active with another associated code in the “Selective Catalyst Reduction System” ECM.
What is the SCR system on a Kenworth?
SCR – Selective Catalytic Reduction is an exhaust aftertreatment technology that utilizes a reductant (DEF) to convert NOx to harmless nitrogen and water.
What is the SCR system in a Peterbilt?
An SCR (Selective Catalytic Reduction) system is a system installed on diesel vehicles to reduce harmful Nitrous Oxide (NOx) emissions. It works by injecting an automotive grade urea, or Diesel Exhaust Fluid (DEF) through a specially designed catalyst, into the exhaust stream of a diesel engine.2019-02-21
What does SCR mean on a Mack truck?
selective catalytic reduction
What does SCR derate mean?
A derate means that the program inside the engine computer limits either the power or vehicle speed. A derate is designed to protect you from causing engine or DPF damage. A derate can be caused by various sensors or system.2019-01-02