JA
CRANKSHAFT POSITION SENSOR-2.0/2.4L . . 4
CRANKSHAFT POSITION SENSOR-2.5L . . . . . 5
ELECTRONIC IGNITION COIL-2.0/2.4L . . . . . . 3
IGNITION COIL-2.5L . . . . . . . . . . . . . . . . . . . . 3
IGNITION INTERLOCK . . . . . . . . . . . . . . . . . . . . 7
KNOCK SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . 7
LOCK KEY CYLINDER . . . . . . . . . . . . . . . . . . . . . 7
SPARK PLUG CABLES . . . . . . . . . . . . . . . . . . . . 2
SPARK PLUGS PLATINUM . . . . . . . . . . . . . . . . . 2
SPARK PLUGS-2.0/2.4L . . . . . . . . . . . . . . . . . . 2
CAMSHAFT POSITION SENSOR AND
CRANKSHAFT POSITION SENSOR . . . . . . . . 10
FAILURE TO START TEST-2.0/2.4L . . . . . . . . . 9
TESTING FOR SPARK AT COIL-2.0/2.4L . . . . . 8
TESTING FOR SPARK AT COIL-2.5L . . . . . . . . 8
DESCRIPTION AND OPERATION
IGNITION SYSTEM
DESCRIPTION
NOTE: The 2.0, 2.4, and 2.5L engines use a fixed
ignition timing system. Basic ignition timing is not
adjustable. All spark advance is determined by the
Powertrain Control Module (PCM).
The
distributorless
2.0/2.4L engines is referred to as the Direct Ignition
System (DIS). Basic ignition timing is not adjust-
able. The system's three main components are the
IGNITION SYSTEM
CONTENTS
page
ignition
system
used
CAMSHAFT POSITION SENSOR-SOHC . . . . . 16
DISTRIBUTOR-2.5L . . . . . . . . . . . . . . . . . . . . 19
IGNITION COIL-2.0/2.4L . . . . . . . . . . . . . . . . 15
IGNITION COIL-2.5L . . . . . . . . . . . . . . . . . . . 16
IGNITION SWITCH . . . . . . . . . . . . . . . . . . . . . . 20
SPARK PLUG CABLES-2.0/2.4L . . . . . . . . . . . 13
SPARK PLUGS AND CABLES-2.5L . . . . . . . . 13
SPARK PLUG-2.0/2.4L . . . . . . . . . . . . . . . . . . 13
FIRING ORDER . . . . . . . . . . . . . . . . . . . . . . . . . 24
IGNITION COILS . . . . . . . . . . . . . . . . . . . . . . . . 25
SPARK PLUGS . . . . . . . . . . . . . . . . . . . . . . . . . 24
VECI LABEL . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
coil pack, crankshaft position sensor, and camshaft
position sensor.
The 2.5L engine uses a distributor, crankshaft sen-
sor and ignition coil. Basic ignition timing is not
adjustable. The system's main components are the
distributor,
distributor
crankshaft signal and ignition coil.
OPERATION
The crankshaft position sensor and camshaft posi-
tion sensor are hall effect devices. The camshaft posi-
on
tion sensor and crankshaft position sensor generate
pulses that are inputs to the PCM. The PCM deter-
mines crankshaft position from these sensors. The
PCM calculates injector sequence and ignition timing
from crankshaft position. For a description of both
IGNITION SYSTEM
8D - 1
page
pickup,
camshaft
signal,