Service and Repair Manual May 2020Perkins 854F-34T Engine Fault Code190 SX™-105 XC™ • SX™-125 XC™ Part No. 1271700GTSPN = Suspect Parameter NumberFMI = Failure Mode IdentifierSPN FMI Description Refer to Engine Manual2791 5 Engine Exhaust Gas Recirculation (EGR)Valve Control:Current Below NormalMotorized Valve- Test2791 6 Engine Exhaust Gas Recirculation (EGR)Valve Control :Current Above NormalMotorized Valve - Test2791 7 Engine Exhaust Gas Recirculation (EGR)Valve Control :Not Responding ProperlyMotorized Valve- Test2797 6 Engine Injector Group 1 :Current AboveNormalInjector Solenoid Circuit- Test2797 7 Engine Injector Group 1 :Not RespondingPropertyInjector Solenoid Circuit - Test2798 6 Engine Injector Group 2 :Current AboveNormalInjector Solenoid Circuit- Test2840 12 ECU Instance :Failure ECM Memory- Test2840 14 ECU Instance :Special Instruction Electrical Power Supply- Test2880 2 Engine Operator Primary Intermediate SpeedSelect :Erratic, Intermittent,or IncorrectThrottle Switch Circuit - Test2880 3 Engine Operator Primary Intermediate SpeedSelect :Voltage Above NormalThrottle Switch Circuit - Test2880 4 Engine Operator Primary Intermediate SpeedSelect : Voltage Below NormalThrottle Switch Circuit - Test2970 2 Accelerator Pedal 2 Low Idle Switch :Erratic,Intermittent, or IncorrectIdle Validation Switch Circuit- Test3217 3 After treatment #1 Intake 02 :Voltage AboveNormalOxygen Level- Test3217 4 After treatment #1 Intake 02 :Voltage BelowNormalOxygen Level - Test3217 5 After treatment #1 Intake 02 :Current BelowNormalOxygen Level- Test3217 6 After treatment #1 Intake 02 :Current AboveNormalOxygen Level- Test3217 12 After treatment #1 Intake 02 :Failure Oxygen Level- Test3217 13 After treatment #1 Intake 02 : Out of Calibration Oxygen Level- Test3217 15 After treatment #1 Intake 02 : High - leastsevere (1)Oxygen Level- Test