DO NOT: Install the low voltage connectors with
the power applied
This might cause an unwanted secondary firing,
possibly leading to personal injury
DO NOT: Use a screw driver to asset in removing
secondary boots from the secondary tower. Use
tools designed for secondary removal.
It is possible to damage a secondary lead in
such a manner that creates an electrical path to
outside the system permitting improper system
operation misfire, or even possible personal
injury if arcing occurs.
DO NOT: Use parts that have been dropped or
display physical damage
Damaged components can lead to premature
failure.
DO NOT: Scratch or apply any non approved
material to the surface of the high voltage tower
which mates with the high voltage secondary
leads.
This can jeopardize the seal integrity of the
mating surfaces which in turn can create a
secondary high voltage leak path.
DO NOT: Strike any part of the ignition system
with a tool or other object.
This can lead to physical damage which can
cause a system malfunction or failure.
DO NOT: Permit paint or other sprayed materials
to be sprayed onto the electrical connectors.
Insulating type sprays can create a high
resistance or open connection. And, a
conductive type spray can create an electrical
short condition.
DO NOT: Support the ignition system by the
wiring harness or plug wire.
These leads are not designed to support the
weight of the ignition system. It can create a
poor electrical connection Or become
disconnected allowing the system to fall and be
subjected to physical damage
DO NOT: Pierce or probe the secondary
leads.
This creates an electrical path to outside the
system permitting improper system operation,
misfire, or even possible personal injury if arcing
occurs.
DO NOT: Operate without the spark plug
attached.
If a technician or mechanic comes in contact
with the high voltage generated during
operation, personal injury may occur. Or, if the
engine is operated under this condition,
unburned fuel may fill the converter area
creating a potential hazard
DO NOT: Share ignition component wiring with
other components, Dedicated wiring is required
.
This prevents electrical cross talking between
components which can lead to component
malfunction.
DO NOT: Apply voltage to the ignition system
other than vehicle system voltage for testing
purposes.
This can cause reduced performance or an
electrical malfunction of the ignition system.
DO NOT: Use high impact tools to apply the spark Damage to the coil tower, secondary boot, or
ENGINE MANAGEMENT SYSTEM
- 273 -
plug boot to the ignition secondary towers.
Installation of the high voltage secondary leads
by hand is preferred.
mating connection surfaces might occur.
DO: Install the secondary leads before
connecting the primary leads.
In the event the low voltage connection has
been made and the power applied, unwanted
secondary output might occur possibly resulting
in injury, damage the ignition component, and
test equipment
DO: Take care when working around the ignition
system.
The high voltage produced by the coil
secondary circuit can cause personal injury
and/or damage test equipment
DO: Proper handling and shipping methods need
to be in place to reduce the risk of damage due to
impact, moisture, or contamination
Damaged components can lead to premature
failure.
DO: Avoid unnecessary disconnecting and
connecting of the electrical components.
The electrical connections are not designed for
repeated connection and disconnection.
DO: Insure the low voltage connectors are
entirely seated and the locking mechanism is
engaged.
This prevents intermittent electrical connections
leading to an improper ignition system
operation.
DO: Use approved connector breakouts when
testing the ignition system.
Connector and/or component damage may
occur.
DO: Insure the appropriate seals are included in
the connector system.
Liquid intrusion into the terminal connection
area might occur causing an electrical
intermittent or short condition. In the event of
severe terminal corrosion, an open condition
might occur.
DO: Operate with gasoline based internal
combustion engines.
Other fuels or combustion designs may require
additional design considerations.
DO:The power feed line should be fused. This could protect the system in the event of an
electrical short
DO: The module heat sink and back plate must
not be used as a connection point when jump
starting the engine
The high level of voltage and current which the
module could be subjected to, could cause
module performance degradation or failure.
DO: Connection of the module back plate to
vehicle ground is desirable whenever possible
This greatly reduce potential ground loops and
acts as a heat transfer source from the module.
DO: The ignition system ground wire should be
kept as short as possible. And, when permissible,
should be grounded at the same engine block
position as the engine controller
This would greatly reduce the possible of
unwanted electrical ground loops.
DO: The electrical wiring to the ignition system
should be routed so that the conductors are
protected from excessive heat, damage, and
wear.
Helps prevent electrical intermittent, open or
shorted operating conditions.
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