What Is Indicated If the Oxygen Sensor Voltage Is Cycling

question 7

Multiple Choice

What is indicated if the oxygen sensor voltage is cycling back and forth across the stoichiometric value several times per second?

• A) The air-fuel ratio is too lean and the voltage cannot stabilize
• B) The air-fuel ratio is too rich and the voltage cannot stabilize
• C) The computer is properly controlling the air-fuel ratio
• D) The computer is malfunctioning

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