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DEF Pump: The DEF pump is responsible for transferring the DEF fluid from the tank to the Selective Catalytic Reduction (SCR) system. It ensures a consistent flow of DEF fluid to the dosing unit and helps maintain the proper dosing rate for efficient emission reduction.
The DEF pump feeds the fluid through the lines that connect it to the dosing valve. The dosing valve is controlled by the computer and delivers precise amounts of DEF fluid to the decomposition reactor.
19 Ιαν 2021 · How do you diagnose a DEF pump problem? I am going to show you how to diagnose a faulty DEF pump with a scope. This method is much faster than doing all the resistance checks the manufacturer wants you to do on the harness, according to service information.
To comply with cutting down emission levels, diesel engine manufacturers as a whole decided to implement a selective catalytic reduction (SCR) system, which includes an SCR catalyst, a pump, a tank, lines, an injector, and a synthetic, non-toxic diesel exhaust fluid (DEF).
Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water.
26 Απρ 2023 · Diesel exhaust fluid (DEF) is a non-hazardous solution used within a selective catalytic reduction (SCR) system to break down harmful pollutants (NOx) generated by a diesel engine. DEF is 32.5% urea, or aqueous ammonia solution, and 67.5% deionized water.
3 Οκτ 2024 · What Is DEF? Diesel exhaust fluid is an automotive-grade combination of urea and deionized water, which you inject into the exhaust stream of a diesel engine to help turn NOx, or oxides of...
