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Yes, if the leak is in the manifold or collector before the 02 senor.

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Q: Will a minor exhaust leak trip an oxygen sensor and thus making a check engine light go on and off?
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Where does an oxygen sensor go on a cars engine or exhaust system?

Exhaust


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Where is Bank 1 Sensor 1 in a 3.3L Dodge engine?

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Where is the oxygen sensor in a 94 caravan?

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What is a HO2 sensor?

A HO2 sensor (heated oxygen sensor) moniters the level of oxygen in the exhaust and sends that information to the engine control module.


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The computer uses the oxygen sensor reading from the exhaust to adjust the amount of fuel injected into the engine.


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