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_____________ senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio.

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_____________ senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio.

(a) Engine temperature

(b) Exhaust gas

(c) Air flow

(d) Air inlet temperature

I got this question in an online quiz.

This key question is from Electronic Injection System in portion Electronic Injection Systems of IC Engine

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Best answer
The correct option is (b) Exhaust gas

Easiest explanation: Exhaust gas senor senses the amount of oxygen in the engine exhaust and calculates air-fuel ratio while engine temperature sensor senses the temperature of the engine coolant, and from this data the computer adjusts the mixture strength to rich side for cold starting.

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