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Technician A states that an average reading of 250mv from the O2 sensor is indicative of a lean exhaust. Technician B states that the technician should be checking for a leaking injector. Who is correct

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tochjosh

Answer:

Both technicians are right

Explanation:

Technician A is right in saying that reading of 250mv from the O2 sensor is indicative of a lean mixture since it fall below the critical level of 450mv for a rich mixture.

Technician B is right by saying the technician should be checking for a leaking injector. This is because a leaking injection will keep dispensing an uncalibrated amount of fuel which will overwhelm the oxygen level. This by definition is a lean mixture.

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