Diesels run on compressed fuel and air. An injector pump sprays fuel into the cylinder and mixes it with the air. When the piston rises to the top of the cylinder it compresses the fuel / air mixture and causes the mixture to ignite powering the engine. The speed of the engine is controled by the throttle plate which controls the amount of air entering the engine as well as the metering valve on the diesel pump which controls the amount of fuel that is sprayed into the cylinder.
Over heating (running to hot), Fast idle (Incorrect idle adjustment), Incorrect timing, Carbon build up in combustion chamber,
no the diesel seems to be flowing back into the tank
What are the causes and sources of vibration on diesel
There is no idle sensor. Idle speed is computer controlled and is not adjustable.
low idle and uneven idle
In a modern 14 liter diesel engine about 1 gallon per hour.
The idle on a 2001 24 valve is computer controlled and is not adjustable.
How do you adjust the idle speed on a citroen berlingo 1.9d (basic diesel engine)
The diesel engine can operate at 12:1 to 24:1 at idle.
There is no required a/f ratio on a diesel. It can be as low as 100:1 at no load idle.
Vacuum leek
What causes a car to idle good and run rough when you give it gas?