Ignition Control; Description - Ignition System; Operation - Ignition System - Chrysler Sebring 2004 Service Manual

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IGNITION CONTROL

DESCRIPTION - IGNITION SYSTEM

OPERATION - IGNITION SYSTEM

SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPARK PLUG CABLE RESISTANCE
SPARK PLUG . . . . . . . . . . . . . . . . . . . . . . . . . 2
AUTO SHUT DOWN RELAY
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CAMSHAFT POSITION SENSOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
REMOVAL
REMOVAL - 4 CYLINDER
REMOVAL - 2.7L . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION
INSTALLATION - 4 CYLINDER
INSTALLATION - 2.7L
IGNITION COIL
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOVAL
REMOVAL - 4 Cylinder
REMOVAL - 2.7L . . . . . . . . . . . . . . . . . . . . . . . 5
IGNITION CONTROL
DESCRIPTION - IGNITION SYSTEM
NOTE: All engines use a fixed ignition timing sys-
tem. Basic ignition timing is not adjustable. All
spark advance is determined by the Powertrain
Control Module (PCM).
The distributorless ignition system used on these
engines is referred to as the Direct Ignition System
(DIS). The system's three main components are the
coils, crankshaft position sensor, and camshaft posi-
tion sensor. If equipped with the coil on plug ignition
system it utilizes an ignition coil for every cylinder, it
is mounted directly over the each spark plug.
IGNITION CONTROL
TABLE OF CONTENTS
page
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IGNITION CONTROL
INSTALLATION
INSTALLATION - 4 CYLINDER
INSTALLATION - 2.7L
IGNITION COIL CAPACITOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 6
KNOCK SENSOR
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REMOVAL
REMOVAL - 4 CYLINDER
REMOVAL - 2.7L . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION
INSTALLATION - 4 CYLINDER
INSTALLATION - 2.7L
SPARK PLUG
DESCRIPTION
DESCRIPTION - STANDARD 4 CYLINDER
DESCRIPTION - PLATINUM PLUGS
SPARK PLUG CABLE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 8
REMOVAL - 2.0/2.4L . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION - 2.0/2.4L
OPERATION - IGNITION SYSTEM
The crankshaft position sensor and camshaft posi-
tion sensor are hall effect devices. The camshaft posi-
tion sensor and crankshaft position sensor generate
pulses that are inputs to the PCM. The PCM deter-
mines engine position from these sensors. The PCM
calculates injector sequence and ignition timing from
crankshaft & camshaft position. For a description of
both sensors, refer to Camshaft Position Sensor and
Crankshaft Position Sensor.
8I - 1
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