Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 1231
FMI: 19
Description: DCU Error – J1939 communication fault
Troubleshooting:
The Doser Control Unit (DCU) controls the Downstream Injection (DSI) System during a
regeneration.
Probable causes:
1) DCU J1939 communication circuit fault
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 1322
FMI: 31
Description: Engine Misfire Multiple Cylinders
Troubleshooting:
The Electronic Control Module (ECM) determines when fuel needs to be supplied to injectors
and supplies voltage to the injectors. The voltage causes a needle inside the injector to lift
which uncovers the spray holes, directing fuel into the cylinder.
Probable causes:
1) Oil growth
2) Aerated oil
3) EGR amount
4) Boost leaks
5) MAF drift
6) MAF auto-calibration
7) EGR distribution
8) Injector quantity and timing issues
9) ICP biased sensor
10) IMT sensor
11) Flying short circuits
12) Injector electrical checks
13) Cam lobe issues
14) Compression brake activating (if installed) during powered engine operation
15) Sticking EGR valve
16) ICP tracking issues
17) Aerated fuel
18) High-pressure oil system repairs (misfire after repairs)
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 1323
FMI: 31
Description: Engine Misfire Cylinder 1
Troubleshooting:
The Electronic Control Module (ECM) determines when fuel needs to be supplied to injectors
and supplies voltage to the injectors. The voltage causes a needle inside the injector to lift
which uncovers the spray holes, directing fuel into the cylinder.
Probable causes:
1) Oil growth
2) Aerated oil
3) EGR amount
4) Boost leaks
5) MAF drift
6) MAF auto-calibration
7) EGR distribution
8) Injector quantity and timing issues
9) ICP biased sensor
10) IMT sensor
11) Flying short circuits
12) Injector electrical checks
13) Cam lobe issues
14) Compression brake activating (if installed) during powered engine operation
15) Sticking EGR valve
16) ICP tracking issues
17) Aerated fuel
18) High-pressure oil system repairs (misfire after repairs)
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 1324
FMI: 31
Description: Engine Misfire Cylinder 2
Troubleshooting:
The Electronic Control Module (ECM) determines when fuel needs to be supplied to injectors
and supplies voltage to the injectors. The voltage causes a needle inside the injector to lift
which uncovers the spray holes, directing fuel into the cylinder.
Probable causes:
1) Oil growth
2) Aerated oil
3) EGR amount
4) Boost leaks
5) MAF drift
6) MAF auto-calibration
7) EGR distribution
8) Injector quantity and timing issues
9) ICP biased sensor
10) IMT sensor
11) Flying short circuits
12) Injector electrical checks
13) Cam lobe issues
14) Compression brake activating (if installed) during powered engine operation
15) Sticking EGR valve
16) ICP tracking issues
17) Aerated fuel
18) High-pressure oil system repairs (misfire after repairs)