The composite vehicle has high emissions and an illuminated Malfunction Indicator Light (MIL). The downstream oxygen sensor voltage is varying con-sistent with the upstream oxygen sensors. Technician A says a faulty catalytic converter could be the prob-lem. Technician B says the downstream oxygen sen-sor could be defective. Who is right?
What will be an ideal response?
Technician A only
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What happens to the voltage measured at the ECT sensor when the thermostat opens?
A) Increases about 1 volt B) Decreases about 1 volt C) Decreases slightly D) Increases slightly
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________ bit signaling occurs when the least significant bit is used to form a pattern that represents on-hook, off-hook, ringing, no ringing, busy, and so forth
Fill in the blank(s) with correct word
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Which is NOT a cause of high superheat in an air conditioning system?
A. refrigerant undercharge B. overfeeding metering device C. underfeeding metering device D. excessive airflow through the evaporator coil
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Solve the proportion for the missing number (x): 250/5 = 25/x
What will be an ideal response?
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