Troubleshooting

76 RENR2696-01
Troubleshooting Section
Possible Performance Effect:
•
Low power
•
Reduced engine
speed
Perform the following diagnostic procedure: “Throttle
Position Sens
or Circuit - Test”
Results:
•
OK – STOP.
i01877645
CID 1627 FMI 03 Fue l In jectio n
Pump Relay Did No t Turn Off
Conditions W
hich Generate This Code:
The ECM still receives signals from the relay of the
fuel injecti
on pump even though the ECM has already
switched off the relay.
System Respo
nse:
The ECM will log the diagnostic code. The diagnostic
code may be vi
ewed on the electronic service tool.
Possible Performance Effect:
Perform the following diagnostic procedure: “Fuel
Injection Pump Circuit - Test”
Results:
•
OK – STOP.
i01798167
CID 1684 FMI 0
0 Fue l Injection
Pump, Fuel Temperature More
Than Normal
Conditions
Which Generate This Code:
This code is generated by the fuel injection pump.
There are two conditions that will generate this code:
The fuel temperature may be above the
recommended ma
ximum operating temperature.
The Perkins recommended maximum operating fuel
temperature is 70 °C (158.0 °F) at the inlet to the fuel
injection pum
p. The electronic fuel injection pump will
note that the fuel temperature is too high.
There may be a
n internal fault within the fuel injection
pump.
System Respo
nse:
The ECM will log the diagnostic code. The diagnostic
code may be vi
ewed on the electronic service tool.
The fuel injection pump will reduce the available
quantity of f
uel for injection if the fuel temperature is
too high and the diagnostic code is still active. E054
High Fuel Temperature Derate is the event code that
will be logg
ed on the ECM.
Possible Pe rformance Effect:
•
The fuel injection pump will be derated.
•
Low engine p
ower
•
Reduced engine speed
Test Step 1.
Check the fu
el system for restrictions.
Check the fuel temperature.
Check for active diagnostic codes
Results:
•
OK – STOP.
Test Step 2.
If the fault
has not been eliminated refer to Systems
Operation, Testing and Adjusting, “Fuel System -
Inspect”.
Results:
•
OK – STOP.