Do not driveTo the nearest safe stop
J1939 code SPN 1322. Below — how the fault is worded at the factory by DAF, KAMAZ, MAZ, SITRAK and YaMZ, and what the second half of the code (FMI) means in the standard.
| FMI 31 | Multiple cylinders misfire detected |
| FMI 3 | Misfire in multiple cylinders |
| FMI 3 | Misfire detected in multiple cylinders - Misfire. Blink code: 5-1-5. Repair: Check the injector connections and the injector harness. |
| FMI 0 | Error in the segment time adaptation of the misfire detection. Scan tool code: P0300. Effect: Torque may be limited. |
| FMI 2 | NOx sensor dynamic check before the catalyst: falling edge. Scan tool code: P06EA. Effect: Torque limited, MIL on, power may drop to 60%. |
| FMI 9 | Multiple cylinder misfire detected. Scan tool code: P0300. Effect: Torque may be limited. |
| FMI 19 | NOx sensor dynamic check after the catalyst: rising edge. Scan tool code: P06EB. Effect: Torque limited, MIL on, power may drop to 60%. |
| FMI 3 | Fault detected, misfire in multiple cylinders (Misfire). Blink code: 5-1-5. Repair: Check the injector connections and the injector harness. |
Do not drive. Stop as soon as it’s safe to do so — don’t keep going.
The code is flagged critical: the manufacturer considers it unsafe to keep driving without checking.
This code alone cannot say what will fail next, so stop at the first safe opportunity and look at it on the spot.
That said, the manufacturer flags this code as critical — if in doubt, it is safer to stop and check on the spot.
Scanner threw several codes at once? Paste the whole list — we will show which one is the root cause and which ones simply followed.