Code : Spn 51 Fmi 4

Actuator Agr Valve (29;36) Throttle Valve (41;61;78); Voltage Below Threshold

Egr-valve (29;36) Or Throttle-valve (41;61;78); Short Circuit To Ground

Intake Air Throttle Circuit Failed Low

Intake Air Throttle Circuit Failed Low: Engine Throttle Valve 1 Position Voltage Below Normal, Or Shorted To Low Source; Position Intake Air Throttle Failed Low

Position Sensor Error Actuator Egr-valve (29;36) Or Throttle-valve (41;61;78) Signal Range Check Low

Spn 51 Fmi 4 problem code is about Position Sensor Error Actuator Egr-valve (29;36) Or Throttle-valve (41;61;78) Signal Range Check Low. If you don't take the time to look into Spn 51 Fmi 4 engine problem when it arises, it can add up quickly. One small issue like Spn 51 Fmi 4 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: This description represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual.

WARNING: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.

WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.

WARNING: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside.

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