SECTION 6H1 - IGNITION SYSTEM

Service Precaution

General Description

Diagnosis

Ignition Coil

Removal

Inspection and Repair

Installation

Spark Plug

Removal

Inspection and Repair

Installation

Crankshaft Angle Sensor

Removal

Installation

Main Data and Specifications

Service Precaution

WARNING: IF SO EQUIPPED WITH A

SUPPLEMENTAL RESTRAINT SYSTEM (SRS),

REFER TO THE SRS COMPONENT AND WIRING

LOCATION VIEW IN ORDER TO DETERMINE

WHETHER YOU ARE PERFORMING SERVICE ON

OR NEAR THE SRS COMPONENTS OR THE SRS

WIRING. WHEN YOU ARE PERFORMING SERVICE

ON OR NEAR THE SRS COMPONENTS OR THE SRS

WIRING, REFER TO THE SRS SERVICE

INFORMATION. FAILURE TO FOLLOW WARNINGS

COULD RESULT IN POSSIBLE AIR BAG

DEPLOYMENT, PERSONAL INJURY, OR

OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.

CAUTION: Always use the correct fastener in the

proper location. When you replace a fastener, use

ONLY the exact part number for that application.

HOLDEN will call out those fasteners that require a

replacement after removal. HOLDEN will also call

out the fasteners that require thread lockers or

thread sealant. UNLESS OTHERWISE SPECIFIED,

do not use supplemental coatings (Paints, greases,

or other corrosion inhibitors) on threaded fasteners

or fastener joint interfaces. Generally, such

coatings adversely affect the fastener torque and

the joint clamping force, and may damage the

fastener. When you install fasteners, use the

correct tightening sequence and specifications.

Following these instructions can help you avoid

damage to parts and systems.

General Description

Ignition is done by the electronic ignition (El) that

directly fires the spark plugs from ignition coils through

spark plug wires without using a distributor. A pair of

ignition coils for the cylinders having different phases by

360° (No.1 and No.4,No.2 and No.5,No.3 and No.6) are

fired simultaneously.

Since the cylinder on exhaust stroke requires less

energy to fire its ignition plug, energy from the ignition

coils can be utilized to fire the mating cylinder on

compression stroke. After additional 360° rotation,

respective cylinder strokes are reversed.

The EI consists of six ignition coils,ignition control

module, crank angle sensor, powertrain control module

(PCM) and other components.

The ignition coils are connected with the PCM by means

of a 32 pin connector.

The ignition control module turns on/off the primary

circuit of ignition coils, and also it controls the ignition

timing at the engine speed below 538 rpm.

A notch in the timing disc on the crankshaft activates

the crank angle sensor which then sends information

such as firing order and starting timing of each ignition

coil to the PCM.

Further, the El employs ignition control (IC) to control

similar to a distributor system.

By receiving signals such as crank position,engine

speed, water temperature and Manifold Absolute

Pressure (MAP), the PCM controls the ignition timing.

D06RW084

Diagnosis

Refer to Section Drivability and Emissions for the

diagnosis to electronic ignition system (El system).

Ignition Coil

Removal

1. Disconnect battery ground cable.

2. Ignition coil connector and ignition coil.

• Disconnect three connector from ignition coil.

• Remove harness bracket bolt on cylinder head

cover.

• Remove fixing bolts on ignition coil.

060RW121

EndOFCallout

Inspection and Repair

Check the ignition coil assembly for insulation. Check

terminals for corrosion or damage, and replace as

necessary.

NOTE: Due to the difficulties encountered when

attempting to measure coil resistance with this design of

ignition coil, , it is recommended that known good units

are substituted for suspect coils when checking for mis-

fires etc.

060RW006

Installation

1. Install the ignition coil assembly (3).

Connect ignition coil connector (1) and ignition coil

(3), then tighten bolt (2) to the specified torque.

Torque: 4 N·m (0.4 Kg·m/35 lb in)

060RW121

2. Connect battery ground cable.

Legend

(1) Ignition Coil Connector

(2) Bolt

(3) Ignition Coil Assembly

Spark Plug

Removal

1. Remove spark plugs.

Inspection and Repair

The spark plug affects entire engine performance and

therefore its inspection is very important.

• Check electrode and insulator for presence of cracks,

and replace if any.

• Check electrode for wear, and replace if necessary.

• Check gasket for damage, and replace if necessary.

• Measure insulation resistance with an ohmmeter, and

replace if faulty.

• Adjust spark plug gap to 1.0 mm (0.04 in) ~ 1.1 mm

(0.043 in).

• Check fuel and electrical systems if spark plug is

extremely dirty.

• Use spark plugs having low heat value (hot type plug)

if fuel and electrical systems are normal.

• Use spark plugs having high heat value (cold type

plug) if insulator and electrode are extremely burned.

Sooty Spark Plugs

Much deposit of carbon or oil on the electrode and

insulator of spark plug reduces the engine performance.

Possible causes:

• Too rich mixture

• Presence of oil in combustion chamber

• Incorrectly adjusted spark plug gap

Burning Electrodes

This fault is characterized by scorched or heavily

oxidized electrode or blistered insulator nose.

Possible causes:

• Too lean mixture

• Improper heat value

Measuring Insulation Resistance

• Measure insulation resistance using a 500 volt

megaohm meter.

• Replace spark plugs if measured value is out of

standard.

Insulation resistance: 50 MW or more

011RS010

Cleaning Spark Plugs

• Clean spark plugs with a spark plug cleaner.

• Raise the ground electrode to an angle of 45 to 60

degrees. If electrode is wet, dry it before cleaning.

• After spark plug is thoroughly cleaned, check

insulator for presence of cracks.

• Clean threads and metal body with a wire brush.

• File the electrode tip if electrode is extremely worn.

• Bend the ground electrode to adjust the spark plug

gap.

011RS011

Installation

1. Spark plugs

• Tighten spark plugs to the specified torque.

Torque: 18 N·m (1.8 Kg·m/13 lb ft)

Crankshaft Angle Sensor

Removal

1. Disconnect battery ground cable

2. Wiring connector from crankshaft angle sensor.

3. Remove crankshaft angle sensor from cylinder

block.

012RS008

Installation

1. Install crankshaft angle sensor into the cylinder

block.

Before installation,apply small amount of engine oil

to the O–ring.

Torque: 10 N·m (1.0 Kg·m/89 lb in)

2. Reconnect wiring connector to crankshaft angle

sensor.

Main Data and Specifications

General Specifications

Torque Specifications

N·m (Kg·m/lbft)

E06RW038

Ignition System

Ignition Form Electronic Ignition System (El system) with Crankshaft angle Sensor

Spark Plug

Type K16PR–P11

RC10PYP4

PK16PR11

Plug gap 1.0 mm (0.04 in) – 1.1 mm (0.043 in)

Torque 18 N·m (1.8 Kg·m/13 lb ft)