Linhai M565Li T3 EFI, Service Manual

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CHAPTER 3 ENGINE
M565Li T3 EFI SERVICE MANUAL 20.0
CHAPTER 3 ENGINE PAGE. 3- 121
impact, moisture, or contamination
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.
DO : Ignition secondary leads should not be routed
with the ignition primary harness or any other
electrical harness.
Voltage spikes can be transmitted from the
secondary cables into other leads which are in close.
This could
create a component performance degradation or
failure condition
DO : Spark plug wires(secondary leads) & primary
wiring:
- must not contact sharp surface
- must not be under tension between fixed points
- Spark plug wires carry very high voltage (30,000
volt). If the secondary lead loses its dielectric
characteristics thru being nicked, cut , chaffed, then
an arc thru to a nearby ground could take place. This
kind of condition could lead to misfire, no start, or