Exam 26: Ignition Systems

Very few newer engines are equipped with a distributor.

The ____________________ on a spark plug help prevent electric arcing on the outside of the insulator.

Until 1994 all ignition systems used some type of distributor.

While discussing electronic ignition systems, Technician A says an NPN transistor in the PCM or ignition module controls primary current flow through the coil. Technician B says coil saturation is controlled by the length of time the primary ignition current is turned on. Who is correct?

Name various locations of sensing devices used to identify engine component position for ignition timing.

Electronic ignition systems with a coil for every two spark plugs use the ____________________ spark method of spark distribution.

Which of the following components is part of the primary and secondary ignition circuits?

A camshaft position sensor [CMP] is necessary for a waste spark type ignition system to determine which coil to fire when the engine reaches TDC.

Crankshaft sensors are being discussed. Technician A says the signal from a Hall-effect CKP cannot be used to synchronize fuel injector timing with the engine. Technician B says some early distributor ignition systems relied on photoelectric sensors to monitor crankshaft position. Who is correct?

What happens when the low-voltage current flow in the coil primary winding is interrupted by the switching device?

By what factor is the heat range of a spark plug determined?

A magnetic pulse generator consists of two parts: a ____________________ and a pickup coil.

A spark plug fires before the piston reaches top dead center (TDC).

Most distributor-equipped ignition systems use one ignition coil for each cylinder.

A spark plug's ceramic core or insulator acts as a heat conductor.

The waste-spark ignition system on a four cylinder engine with dual plug [two spark plugs per cylinder] cylinder heads requires four ignition coils.

The heat range of a spark plug is indicated by ______.

Spark plug wires are being discussed. Technician A says silicon-insulated wires are used for normal temperature applications. Technician B says hypalon-insulated wires are used for high-temperature applications. Who is correct?

One of the advantages of a coil-on-plug type ignition system is that it eliminates the need for ______.

What is spark plug reach?