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How is the air-fuel mixture for full power mode?

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in Automotive Engine Design by (137k points)
How is the air-fuel mixture for full power mode?

(a) Rich

(b) Lean

(c) Stoichiometric

(d) Very lean

This question was addressed to me in an international level competition.

Origin of the question is Petrol Injection in division Petrol Engine Fuel Supply System of Automotive Engine Design

1 Answer

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Best answer
The correct option is (a) Rich

To explain I would say: Fuel – air mixture is made richer in the full power mode and the fuel is sprayed in during the intake stroke which is controlled by the ECU. The ECU controls the amount of fuel injected based upon the airflow into the engine.

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