Basic Fuel Properties
The material used as a lubricant in diesel fuel.
What is wax?
This is what causes ignition of diesel fuel.
What is Heat of Compression?
The three types of diesel fuel injectors.
What are Mechanical, HEUI, and Piezoelectric?
The fluid introduced into the exhaust to help control NoX emissions.
What is DEF?
These are the three things required for Diesel Ignition.
What are Air, Fuel and Heat of Compression?
The rating given to Diesel regarding it's combustability.
What is Cetane?
Fuel filters generally use this to prevent gelling of diesel fuel during cold weather.
What is a heater?
This is required to raise the fuel pressure to the required level before injection.
What is the High Pressure Fuel Pump?
Similar to a gasoline engine, this is used to reduce combustion temperatures by allowing exhaust into the combustion chamber.
What is EGR?
This will typically cause heavy black smoke from the tailpipe?
What is over fueling?
The two seasonal designations for diesel fuel.
What are Summer and Winter?
Whereas in a gasoline engine, this is usually around 9:1, in a diesel it is usually a lot closer to 20:1
What is Compression Ratio?
We make the high pressure fuel lines out of this material.
What is Steel?
These two emissions are primarily controlled by the DOC?
What are Hydrocarbons and Carbon Monoxide?
This light will illuminate if excessive moisture is collected in the fuel filter.
What is the Water In Fuel (WIF) sensor?
The colour diesel fuel is dyed for off-road usage.
What is Red?
He is credited as the inventor of the Diesel engine.
Who is Adolf Diesel?
A small amount of fuel injected before the main injection is called this.
What is Pilot Injection?
These are the three elements inside the DOC that are responsible for the catalyst reaction to occur, also, part of what makes them SO EXPENSIVE.
What are Platinum, Paladium, and Rhodium?
This test can be instigated by a scan tool to determine if a misfire is base mechanical or injection related.
What is a Relative Compression Test?
This is added to Diesel for long term storage.
What is a Biocide?
This can go as high as 28000psi in a Diesel Engine.
What is Fuel Pressure?
It is identified by a 10 digit code or a QR code stamped on the injector.
What is Injector Quantity Adjustment(IQA) code?
This sensor is used to determine the soot loading quantity of the DPF, and if a regen cycle is required.
What is a Differential Pressure Sensor?
These are your two favorite instructors at NAIT
Who are Simon and DJ?