Modern Ignition Systems

What is the primary purpose of the ignition system?

• To supply power to the engine control module

• To distribute power to each individual cylinder

• To ignite the air/fuel mixture in the combustion chamber

• To reduce engine drivability problems

What is the voltage range required for the spark to occur?

• 10,000 - 20,000 volts

• 20,000 - 50,000 volts..

• 50,000 - 80,000 volts

• 80,000 - 100,000 volts

What are the two main jobs of the ignition system?

• Increasing voltage and reducing engine temperature

• Delivering voltage to the right cylinder and reducing engine noise

• Increasing voltage and delivering voltage to the right cylinder

• Reducing engine temperature and delivering voltage to the right cylinder

What is the source of power in the ignition system?

• Ignition coil

• Engine control module

• Spark plug

• Battery

What is the purpose of the laminated steel plates in the ignition coil?

• To insulate the circuit voltage

• To increase magnetic fields

• To reduce eddy currents

• To stop turn-to-turn shorts

What can be a result of ignition coil failure?

• Improved engine performance

• Misfiring and difficulty in starting

• Reduced fuel consumption

• Smooth running under all conditions

What improvements have been made to ignition coils?

• Reduced size, increased voltage and improved dwell accuracy

• Increased audible coil noise and improved heat dissipation

• Improved module reliability and reduced coil temperatures

• Enhanced fuel spray variation and improved high-speed performance

What are some coil designs and styles used in modern ignition systems?

• Waste spark coil packs and ion sense ignition systems

• Composite iron coils and multi-charge ignition systems

• Direct connection coils and stratified direct injection coils

• All of the above

What is the advantage of ion sense ignition systems?

• More precise knock and misfire detection

• Faster performance of the coil

• Improved heat dissipation

• Greater reliability in high-speed performance

What are multi-charge coils designed for?

• Engines with highly diluted fuel mixtures..

• Engines with low voltage requirements

• Engines with high combustion temperatures

• Engines with advanced timing systems