The SPN 4331 code refers to the Aftertreatment 1 Diesel Exhaust Fluid (DEF) tank level. It indicates that the system has detected an issue with the DEF quantity in your vehicle’s tank. This fluid is essential for reducing emissions and ensuring compliance with environmental regulations. When the level drops below a certain threshold, this ...

4331 Aftertreatment 1 Diesel Exhaust Fluid Actual Dosing Quantity Data Valid But Below Normal Operating Range - Moderately Severe Level. Technician: Daniel Wilson. Depending on your current sootlevel, if your truck requires regeneration and is unable to complete a regeneration because of this fault, your power will be back and derated. There is ...

2024年8月13日 · SPN 4331 is a generic J1939 code that applies to various makes of diesel engines. The FMI (Failure Mode Indicator) pinpoints which cylinder is affected: FMI 5 – Cylinder #7; FMI 6 – Cylinder #8; FMI 7 – Cylinder #9 ; FMI 8 – …

2021年11月18日 · Solved: Hi Folks Wonder if you could help have an ISR 4331 with an SFP (SFP-GB-GE-T) in interface G0/0/2. It is set for auto negotiation and negotiates to 100M/Full duplex to an ADVA NTE. Although the interface comes up I am seeing CRC errors. The

SPN:4331, FMI:20 paccar engine. 2019 peterbilt 389. DEF filter changed, inlet and outlet nox sensors changed. Urgent. Nich M. | Expert. 24,685 Satisfied Customers. 2018 kenworth t680 paccar mx13 epa 17 codes spn-2791 fmi11 spn-3251 fmi15 spn-3251 fmi16 spn-3821 fmi 11. Nich M. | Expert.

Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4658 PID: SPN: 4331 FMI: 18 Aftertreatment SCR Actual Dosing Reagent Quantity- Data Valid But Below Normal Operating Range- Moderately Severe. Circuit Description

2023年1月2日 · DEF Fill up = Engine Code 4331-18. On our Christmas trip I needed to fill up the DEF tank. Purchased DEF in the 2.5 gallon containers and Filled the tank full . When I restarted the engine an orange light came on. I have a BlueFire ODB reader and pulled this code 4331-18 "Engine - Aftertreatment 1 SCR Actual Dosing Reagent Quantity. Data Below ...

Customer: SPN:4331, FMI:20 paccar engine Mechanic's Assistant: The car Mechanic will know what to do about your engine. Do you have any other details that could be helpful? Customer: 2019 peterbilt 389 Mechanic's Assistant: Is there anything else the car Mechanic should know before I connect you? Rest assured that they'll be able to help you. Customer: DEF filter changed, inlet and outlet nox ...

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