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Diesel-Engine Management System Overview

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Diesel-Engine Management System Overview

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Questions and Answers

What is the primary advantage of CRDI engines over conventional diesel engines?

Reduced emissions

Lower maintenance costs

Improved fuel efficiency

Higher power output and torque (correct)

Which component of the CRDI system is responsible for controlling the fuel injection process?

Fuel pressure sensor

Diesel pressure pump

Fuel pressure regulator

Electronic Diesel Control (EDC) Unit (correct)

Which of the following statements about CRDI engines is true?

The injectors in CRDI engines have a typical lifespan of around 150,000 miles. (correct)

CRDI engines are less expensive than conventional diesel engines.

CRDI engines have a lower maintenance cost compared to conventional diesel engines.

CRDI engines have lower power output and torque compared to conventional diesel engines.

What is the primary factor that determines the power output from a diesel engine?

Available clutch torque and engine speed Signup and view all the answers

Which of the following is NOT a potential issue with CRDI engines after high mileage?

Increased fuel efficiency Signup and view all the answers

What is the primary function of the fuel pressure regulator in a CRDI system?

Regulate the fuel pressure in the injectors Signup and view all the answers

Which component of the CRDI system is considered the hardest working part?

Diesel pressure pump and injectors Signup and view all the answers

What is the primary disadvantage of CRDI engines compared to conventional diesel engines?

Higher maintenance costs and expensive parts Signup and view all the answers

What is the purpose of the charge-cycle losses in a diesel engine?

Reduce the available clutch torque Signup and view all the answers

Which of the following statements about CRDI engines is FALSE?

CRDI engines have lower maintenance costs than conventional diesel engines. Signup and view all the answers