Answer :
Technician B is correct. Diesel engines have a common fuel rail and the injectors are controlled by the computer.
Who is correct?
Diesel engines typically do not have a distributor-type injection pump. Instead, modern diesel engines often use a common rail fuel injection system where there is a common fuel rail and individual injectors for each cylinder. These injectors are electronically controlled by the engine's computer (ECU or ECM) to precisely control the timing and amount of fuel injected into each cylinder. This system provides better fuel efficiency and emissions control.
Distributor-type injection pumps are more commonly associated with older diesel engines, particularly in mechanical injection systems, but they are less common in modern diesel engines.
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