Technician a Says If a Lean Condition Caused by a Vacuum

question 53

Multiple Choice

Technician A says if a lean condition caused by a vacuum leak, restricted injectors, dirty MAF, clogged fuel filter, or bad fuel pump exists, the LTFT will have a negative number. Technician B says when the O2 sensor has a rich signal, the STFT goes lean to adjust the air/fuel ratio. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Time Out

A disciplinary technique used to remove a child from an environment where inappropriate behavior has occurred, to encourage self-soothing and reflection.

Systematic Desensitization

is a behavioral therapy technique used to reduce anxiety through gradual exposure to the feared object or situation coupled with relaxation exercises.

Progressive Relaxation

A technique involving the tensing and relaxing of muscle groups in sequence to achieve physical and mental relaxation.

Feared Object

An object or situation that elicits a strong fearful or phobic reaction from an individual.