Red Cummins QSK78 heavy diesel engine
DPF | DPD | FAP

DPF / EGR Delete

Stop chasing failed regenerations, blocked filters and limp-home warnings with a DPF delete solution built around your duty cycle.

45mtypical truck install window
0regen stops after delete
1000sfleet jobs completed
WHAT WE SOLVE

Remove the fault cycle, not just the warning light.

Diesel particulate filters capture soot, then burn it off during regeneration. That works on paper, but short trips, low-speed work, poor servicing, oil choice and heavy duty cycles can all turn the DPF into a recurring failure point. Optima removes the cause of those stoppages through software, remapping or emulator-based solutions.

Send Jack the vehicle details and current symptoms, and he will tell you what is realistic before anything is booked.

BENEFITS

Why operators choose this service

  • Remove forced regeneration stops
    Potentially save 5% or more on fuel ( operator dependant)
  • Stop recurring filter blockage warnings
  • Avoid limp-home and derate events from DPF faults
  • Reduce expensive exhaust aftertreatment repair costs
  • Improve reliability for low-speed or stop-start duty cycles
  • Pair with EGR work where the engine package calls for it
COMMON SYMPTOMS

Problems this is built for

  • Blocked diesel particulate filter
  • Failed or incomplete regeneration
  • Dashboard warnings and fault codes
  • Derate or limp-home mode
  • Short-run duty cycles that never heat the filter properly
  • High replacement costs for filters and sensors
PROCESS

How the job normally works

01

Diagnose the blockage pattern

We look at the vehicle use, fault history and engine family so we can tell whether DPF-only or DPF plus EGR work is appropriate.

02

Apply the delete method

Depending on the vehicle, the DPF can be handled through software reprogramming, remapping or an emulator.

03

Clear faults and test

The vehicle is checked after the work so warnings, fault codes and derate behaviour are resolved before handover.

COVERAGE

Where this service fits

Coverage is engine-led, so the exact make and emissions package matter more than the badge on the bonnet.

Vehicle types
Utes / Cars / Light trucks / Heavy trucks / Construction equipment / Agricultural equipment
Related systems
DPF / DPD / FAP / EGR / regeneration controls
Best suited for
Stop-start fleets / low-speed work / high-load machinery / remote operators
FAQ

Questions operators ask

Every machine has its own history. Warning lights, fault codes, duty cycle and previous repairs all change the best answer.

Not sure what you need?Send a photo of the dash warning, the rego or VIN, and the machine details. Jack can usually narrow the path quickly from there.
What causes DPF blockage?

Common causes include short trips, low road speeds, poor servicing, unsuitable oil, faulty EGR valves, faulty CVS system, fuel quality issues and duty cycles where regeneration cannot complete.

Can DPF and EGR be deleted together?

Yes. Many engines are better treated as a package, especially where EGR behaviour is contributing to soot load and repeat DPF blockage.

Do you work on light diesel vehicles too?

Yes. Optima works across utes, cars, light trucks, heavy trucks, construction equipment and agricultural equipment.

NEXT STEP

Send the fault story. Get a practical answer.

No guesswork, no generic internet tune file. Tell us what the vehicle is doing, what has already been replaced, and how urgently it needs to be back earning. Jack will come back with the most sensible route for this DPF job.

  • Current fault codes or dash warnings
  • Make, model, year and engine family
  • Where the machine is based and how it is used
What to sendPhotos of the dash, machine plate and any fault code report help Jack confirm the practical route faster.Request a Quote