Guidelines for High Altitude DPF Regeneration Operation

1. Active regeneration process

Step 1: Environmental condition confirmation

Altitude requirement:≤4500 meters (it is recommended to stop and regenerate after exceeding the limit);

Vehicle speed requirement:≥60km/h (maintain stable driving for more than 30 minutes);

Oil temperature requirements: coolant temperature≥70℃, oil temperature ≥90 ℃.

Step 2: Manual regeneration operation

Method 1: Press and hold the DPF regeneration button for 5 seconds, and the dashboard will display "Regeneration Active";

Method 2: Remote start regeneration through Isuzu MyIsuzu APP (vehicle networking required);

Caution: Do not shut down or accelerate rapidly during the regeneration process; The engine speed will automatically increase to 2500-3000rpm.

2. Emergency regeneration strategy

Scenario 1: DPF blockage alarm (carbon load>20g/L)

Temporary handling: Find a safe parking spot, shift into neutral and tighten the handbrake; Start the engine and maintain idle speed (800-1000rpm); Press the 'forced regeneration' button for 45 minutes;

Risk Warning: This operation may increase urea consumption by 30%.

Scenario 2: Regeneration interruption fault (P2459 code)

Troubleshooting process: Check if the DPF differential pressure sensor signal wire 5jo-wqeqwe16666.cn is loose; Measure DOC outlet temperature (standard value ≥ 500℃); Clear the fault code and try regeneration again;

Alternative solution: If 3 attempts fail, you need to go to the service station for "deep regeneration" (requiring specialized equipment).