Troubleshooting

RENR2696-01 179
Troubleshooting Section
Note: The engine protection system (if equipped)
and the engine s
hutdown system (if equipped)
have the ability to disconnect the electrical power
from the fuel injection pump. The engine protection
system will di
sconnect the electrical power supply
to the Electronic Control Module (ECM). The loss of
electrical power to the engine will cause the engine to
shutdown. Th
e engine protection devices can be the
problem when the engine is difficult to start. Some
engine protection systems will not supply power to
the system u
ntil the crankshaft rotates, and the oil
pressure achieves a safe level, or until an override
button is activated. These devices may be the cause
of intermit
tent power loss or no power to the fuel
injection pump.
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Illustration 90
Schematic for the fuel injection pump