DIS Ignition Mr. Lombardi, Lombardo, Setter. DIDIS Distributor Ignition Distributorless Ignition.
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Transcript of DIS Ignition Mr. Lombardi, Lombardo, Setter. DIDIS Distributor Ignition Distributorless Ignition.
IGNITION SYSTEMS 2DIS Ignition
Mr. Lombardi, Lombardo, Setter
DI and DIS
DI DIS
Distributor Ignition Distributorless Ignition
Distributorless Ignition
DIS Parts PCM Coil Pack ICM Crank Sensor Cam Sensor Knock Sensor MAP Sensor Ignition Wires Spark Plug
PCM or ECM
The Brain of the modern ignition system Controls the functions of the ignition
system and whole car Uses sensor info to create the primary
circuit
ICM
Takes place of the distributor Receives signals (primary voltage) from
PMC Controls Dwell Fires the Coils
Coil
Amplifies primary circuit voltage from 12V to 50,000 plus.
Can be shared (pack) or one per cylinder
Crank Position Sensor Essentially the same
purpose as the ignition pickup and trigger wheel in an electronic distributor.
Generates a signal that the PCM needs to determine the position of the crankshaft and the number one cylinder.
Camshaft Position Sensor
Used to help the PCM determine the correct firing order.
Knock Sensor
Detects engine vibrations (detonation) so the PCM can retard timing
MAP
Connected to the intake manifold to monitor intake vacuum.
PCM uses this signal to measure engine load so ignition timing can be advanced and retarded as needed.
Spark plug wires
There are several different Wire types and Manufactures depending on the application
High Tension Ignition Wires There are three basic wire types
CARBON SUPPRESSION CONDUCTORS SOLID CORE CONDUCTOR WIRES "LOW-RESISTANCE" SPIRAL WIRES
Spark Plugs
Spark plugs come in different .. heat ranges Shapes Sizes
The End