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Have cummins isx 15 with fault cods spn 3251 and spn 3720…

Customer Question
Have cummins isx 15...

Have cummins isx 15 with fault cods spn 3251 and spn 3720 need to know how to fix

Mechanic's Assistant: What is the complete model and serial number of your machine?

Isx 15 cm2350x101

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

Yes i pulled the codes on a hand reader but not sure what they are

Submitted: 4 months ago.Category: Medium and Heavy Trucks
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Answered in 19 minutes by:
12/13/2017
Technician: Daniel Wilson,
 replied 4 months ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,530
Experience: Owner at DJ Wilson
Verified

Hi ,My name is***** will be glad to help. We can follow up as needed on here, bare with me while I review your information. Im not an employee of the site but I help on here as time allows in between jobs. Response time will vary depending on my work load , etc each day.

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Technician: Daniel Wilson,
 replied 4 months ago

Fault Code: 1883
PID: S324
SPN: 3251
FMI: 0/2

Aftertreatment Diesel Particulate Filter Differential Pressure Sensor - Data Erratic, Intermittent, or Incorrect. The aftertreatment diesel particulate filter differential pressure sensor is reading an erratic value at initial key ON or during engine operation.Possible reduced engine performance.

Possible causes of this fault code include:

  • Stuck in-range aftertreatment diesel particulate filter differential pressure sensor reading
  • High resistance in the aftertreatment diesel particulate filter differential pressure sensor signal or return wires
  • Disconnected or damaged aftertreatment diesel particulate filter differential pressure sensor tubes
  • Plugged aftertreatment differential pressure sensor ports could cause this fault code if pressure is held in the port after the engine is turned off.
  • Frozen, plugged, or restricted aftertreatment DPF differential pressure sensor tubes.
Ask Your Own Medium and Heavy Trucks Question
Technician: Daniel Wilson,
 replied 4 months ago

The aftertreatment diesel particulate filter differential pressure sensor is mounted on the diesel particulate filter. It detects both diesel particulate filter differential pressure and outlet pressure.

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Technician: Daniel Wilson,
 replied 4 months ago

CODE REASON EFFECT
Fault Code: 5383
PID:
SPN: 3720
FMI: 15
LAMP: Maintenance
SRT:
Aftertreatment 1 Diesel Particulate Filter Ash Load Percent - Data Valid But Above Normal Operating Range - Least Severe Level. The aftertreatment diesel particulate filter (DPF) requires exchange or cleaning.

None.

ISX12/ISX11.9 CM2250/ISB6.7 CM2250/ISC8.3 and ISL9 CM2250/ISX15 CM2250 - Engine Control Module (ECM)
SMALL | MEDIUM | LARGE
Circuit Description

The engine aftertreatment system monitors the aftertreatment DPF restriction and accumulated mileage and/or hours. The diagnostic alerts the operator of the requirement to clean or exchange the aftertreatment DPF.

Component Location

The aftertreatment DPF is located in the exhaust system and is installed by the equipment manufacturer. Refer to the equipment manufacturer service information.

Conditions for Running the Diagnostics

This diagnostic runs when the engine is operating and exhaust flow is above a minimum level.

Conditions for Setting the Fault Codes

This diagnostic monitors the aftertreatment DPF differential pressure sensor, mileage, and/or hours accumulated in the ECM. When the aftertreatment DPF differential pressure is above a maximum value at the end of an aftertreatment regeneration, or the mileage and/or hour limit has expired, the fault code is set.

Action Taken When the Fault Code is Active

The ECM will illuminate the MAINTENANCE lamp immediately after the diagnostic runs and fails for two consecutive trips.

Conditions for Clearing the Fault Code

In order to clear the fault code, the aftertreatment DPF must be exchanged or properly cleaned and the INSITE™ electronic service tool must be used to perform an Aftertreatment Diesel Particulate Filter Installation
Shop Talk

Possible causes of this fault code include:

The aftertreatment DPF differential tubes are installed incorrectly, broken, loose, or have been tampered with.
The aftertreatment DPF differential tubes are installed incorrectly.
The aftertreatment DPF differential pressure sensor is malfunctioning.
The aftertreatment DPF requires exchange or cleaning.
Excessive ash in the DPF.

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Technician: Daniel Wilson,
 replied 4 months ago

Please take a moment to rate as that is how the site credits my time helping on the site or let me know if you need more help. 5 star and bonuses are always greatly appreciated.

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Technician: Daniel Wilson,
 replied 3 months ago

Hello,I see this is still open with no response from you. Would a call be easier for you? Ill send over the offer to get that set up. I am trying to close out my open questions and get them resolved. If you have resolved this please let me know. Im not an employee of the site and my time is valuable as is yours. The site only credits me a portion of the question value on accepted answers and positive feedback. I see neither has happened here. I took the time to post and research this information for you. Could you do the same for me?Take the time to either post a response with a status or leave a rating if your problem is resolved? It's been a pleasure to help.

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