Entries by admin

Diesel Particulate Filter (DPF)

The DPF – or soot trap – “filters” harmful diesel exhaust soot particles that should be emptied regularly (regenerated) to maintain performance and the life of the filter. The DPF needs to be cleaned regularly, through a process called regeneration (active, passive or forced regeneration). Regeneration burns off soot at a temperature of 1100 F […]

Engine Code: SCR NOx Conversion Low

What do you do when your truck throws an engine code that says SCR (Selective Catalytic Reduction) NOx Conversion Efficiency is Low? Let’s look specifically at a Detroit Diesel Engine code, SPN 4364/FMI 18 – GHG14 as a typical example of any engine design.

Technical Brief: Diesel Exhaust Fluid

Effective January 1, 2010 new Environmental Protection Agency (EPA) regulations go into effect that reduces the amount of Nitrous Oxides (NOx) that on-highway diesel engines in both cars and trucks can emit. Nitrous Oxides levels are reduced by 95%. In order to reach these lower levels of NOx, a catalytic converter has been added to […]