What does a misfiring cylinder usually indicate?
A misfire can result from ignition problems, fuel delivery issues, or compression faults.
Which sensor helps monitor the air-fuel mixture?
The oxygen sensor detects the level of oxygen in the exhaust gases to adjust fuel delivery.
What is a typical symptom of a failing mass airflow sensor?
A faulty MAF sensor may cause rough idling, poor fuel economy, or hesitation during acceleration.
Which component regulates ignition timing?
The engine control module adjusts ignition timing for efficient combustion.
What tool is commonly used to read engine fault codes?
An OBD-II scanner retrieves diagnostic trouble codes from the vehicle's computer.
Which of the following could trigger the check engine light?
Issues such as a loose gas cap or a malfunctioning sensor can activate the warning light.
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Why is a compression test important for engine diagnostics?
It reveals the condition of the engine’s internal sealing and helps detect worn or damaged components.
Which system ensures the engine operates at ideal temperature?
The cooling system regulates temperature to prevent overheating and improve efficiency.
Which engine component is directly driven by the crankshaft?
The camshaft is typically driven by the crankshaft to control valve timing.