Exhaust Gas Recirculation 
Cummins EGR & DPF Problems

We all know Cummins has had 4 generations of EGR coolers to get on top of their issues, and they still have issues which can cost a lot of money and downtime on a regular basis. On top of that engine life is not what it should be by a long shot.

DPF issues are usually related to EGR issues, and can be derates, high fuel consumption, turbo issues, no power in the lower rpm range and so on. Reprogramming not only solves most of these issues, with our program and some driver behaviour changes a real fuel saving is very achievable and saves real money. ​

​Contact us today and see how Optima Transport Solutions can help you.

If you have EGR and DPF you will have the following weaknesses built into your engine: ​

• High exhaust back pressure, and high exhaust temperature
  
• DPF blocks easily and often
  
• Lots of DPF regeneration cycles, often causing smoke, and the smoke leads to complaints from other road users
  
• High intake temperature, inefficient fuel use
  
• High top ring temperature (less engine life)
  
• High coolant temperature (compromises engine life and coolant systems)
  
• High Fan ON time (up to 80% in some engines)
  
• High soot in the intake, blocked inlet manifolds
  
• EGR cooler failures (often leads to turbo and piston/valve issues)
  
• EGR electronic component problems
  
• Poor throttle response and low power complaints
  
• Poor fuel consumption
  
• High soot loading in the engine oil, causing extra wear and needing more frequent oil changes
  
• Lots of time off the road, on top of being parked up for DPF regenerations
  

The Benefits Of Our
​EGR Delete Service:

• ​A feeling of more power and good response
  
• A wider power band (EGR restricts power under 1300 and above 1600 rpm in most engine fails)
  
• Better fuel economy (we have seen 17%)
  
• Lower engine operating temperature by about 10 or 15 degrees
  
• Cleaner engine oil, and cooler engine oil, less oil changes, longer engine life
  
• Very little Fan ON time, down to 15 or 20% (less noise & fuel used)
  
• Less down time and less repairs
  
• For every dollar saved in fuel you will save a dollar in maintenance
  
• It is possible, in most cases, to remove the whole EGR system and all of its components, saving weight and costs.
  

​Adblue Problems:

Another add -on system that causes issues and expenses, pumps fail, injectors leak and cause exhaust blockage with lumps of urea, derates, extra dealer visits .
We have several options available for each model engine so please contact us with your details and we’ll happily discuss the options and pricing.

• EGR /DPF delete, no other changes
• EGR DPF delete and increase power to 600, 620 or 660 hp
• EGR /DPF delete and a mild torque increase for fuel economy
• Adblue delete and we do this with some throttle enhancements for response.

Exhaust
Gas
​Recirculation (EGR)

The video will explain how Optima Transport Solutions can benefit you and rectify your diesel emission problems through our services.

Service Agents

New Zealand, Australia, Canada and the USA.

Optima Transport Solution have service agents in New Zealand, Australia, Canada and the USA. Increase Horse Power, Torque and Engine Life. Reduce Fuel Consumption & Running Costs. Over 30 years experience, we'll solve your emissions system issues.  ​Get in touch with us and see how we can help. ​

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