Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 3936
FMI: 14
Description: DPF Regen duration above limit
Troubleshooting:
The purpose of the Aftertreatment (AFT) System is to catalyze carbon monoxide (CO), Oxides
of Nitrogen (NOx), and Hydrocarbons (HC). The Diesel Particulate Filter (DPF) will capture
soot and other particulates exiting the exhaust pipe. Once the DPF is full, it is heated and the
soot trapped inside is burned more efficiently than an exhaust system without an AFT system.
Probable causes:
1) Engine unable to build enough heat to the DOC
2) DOC failure
3) DSI failure to inject fuel into the exhaust
4) DPF failure
Page
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 3936
FMI: 20
Description: DOC inlet unable to achieve light off temperature
Troubleshooting:
The purpose of the Aftertreatment (AFT) System is to catalyze carbon monoxide (CO), Oxides
of Nitrogen (NOx), and Hydrocarbons (HC). The Diesel Particulate Filter (DPF) will capture
soot and other particulates exiting the exhaust pipe. Once the DPF is full, it is heated and the
soot trapped inside is burned more efficiently than an exhaust system without an AFT system.
Probable causes:
1) Biased or Failed DPFIT sensor or circuit,
2) Biased or Failed Air Inlet Temperature (AIT) Sensor or circuit
3) Exhaust leaks
4) DSI Fault
5) DSI System Leak
6) Hydrocarbon Injection (HCI) or HCI housing Plugged
7) DOC failed or missin
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 4077
FMI: 3
Description: AFTFP2 signal Out of Range HIGH
Troubleshooting:
The Aftertreatment Fuel Pressure 2 Sensor (AFTFP2) sensor monitros fuel pressure in the
aftertreatment fuel system
Probable causes:
1) AFTFP2 signal circuit OPEN or short to PWR
2) Failed AFTFIS
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 4077
FMI: 4
Description: AFTFP2 signal Out of Range LOW
Troubleshooting:
The Aftertreatment Fuel Pressure 2 Sensor (AFTFP2) sensor monitros fuel pressure in the
aftertreatment fuel system
Probable causes:
1) AFTFP2 signal circuit short to GND
2) Failed AFTFIS