Dtc 87-Fuel Pressure Low; Dtc 88-Fuel Pressure High; Fp (Fuel Pressure Sensor) (Dtc 87, 88, 91, 92) - Kubota WG1605-E3 Diagnostic Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, DM

(2) FP (Fuel Pressure Sensor) (DTC 87, 88, 91, 92)

DTC 87-Fuel Pressure Low

• Hardware: Liquid Fuel Pressure and Temperature Sensor
• Enabling Conditions: Engine Running
• Set Conditions: FP fault mode Gasoline only, run time wait for fuel pressure low faults 5.0 sec,
FP pressure < 345 kPa [abs] (3.52 kgf/cm
• Corrective Action(s): Illuminate the MIL and low rev limit, AL disable KC
• Emissions related fault
• Possible Causes: Fuel pressure problem with engine, Fuel pressure sensor failure, Fuel pressure sensor circuit
shorted to ground, Faulty ECM

DTC 88-Fuel Pressure High

• Hardware: Liquid Fuel Pressure and Temperature Sensor
• Enabling Conditions: Engine Running
• Set Conditions: FP fault mode Gasoline only, run time wait for fuel pressure low faults 5.0 sec,
FP pressure > 448 kPa [abs] (4.57 kgf/cm
• Corrective Action(s): Illuminate the MIL and low rev limit, AL disable KC
• Emissions related fault
• Possible Causes: Fuel pressure problem with engine, Fuel pressure sensor failure, Fuel pressure sensor circuit
shorted to power, Faulty ECM
2
, 50.0 psia)
2
, 65.0 psia)
1-130
ECM SYSTEM
KiSC issued 12, 2016 A