Kubota WG1605-E3, Diagnostic Manual

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ECM SYSTEM
WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, DM
1-117
DTC 1166 1171 1172
Name Catalyst EPR Diagnostics EPR Diagnostics
DTC Name Catalyst inactive on NG
EPR/CFV Regulation Pressure Higher
than Expected EPR/CFV Regulation Pressure Lower
than Expected
J1939
SPN 3050 520260 520260
FMI 11 0 1
MIL OFF ON ON
Detected Item
• Inlet pressure to DEPR is too high. • Inlet pressure to DEPR is too low.
• Malfunctioning lock off valve,
plugged fuel filter, closed manual
valve or fuel tank out of fuel
DTC Set
Preconditions • Engine Running • Engine Running • Engine Running
DTC Set
Conditions
• EGO3/4 RMS > 0.008 phi
• and EGO3/4 RMS > EGO1/2 RMS
50 %
• and EGO3/4 RMS > CL waveform
RMS 50 %
• and mass flow at ports >=
10.0 g/sec and <= CBT

CBT_ss
+/

50.0 degF
• EPR actual-commanded pressure
> 2.50 in H
2
O
• EPR actual-commanded pressure
< -2.50 in H
2
O
Period for
Judgment or
Number of
Occurrence
for Judgment • 100 updates • 5 sec • 5 sec
System
Action • CL Disable
• AL Disable KC • AL Disable • AL Disable
Engine
Warning Light
ON ON ON
KiSC issued 12, 2016 A