I’m writing here again because, after a year and a half, I still haven’t been able to solve the problem that started after a specific V3 software version.
At first, I genuinely believed that the issue was mechanical. The amount of smoke coming from the exhaust was so extreme that I thought the engine had serious internal damage. For this reason, I opened the engine twice to inspect and verify everything.
Over the last year and a half, I have checked every possible aspect of the car:
- complete wiring and electrical connections;
- ignition system;
- injectors and fuel system;
- sensors and calibrations;
- fuel pressure configuration;
- injection settings and timing;
- complete remapping of the ECU;
- mechanical components and engine internals.
I even sent the ECU to Poland for inspection to make sure there were no hardware problems.
During this period, I tried every possible calibration and every adjustment I could think of in order to adapt my setup to the V3 software logic.
Unfortunately, despite all these tests, the problem is still present.
What I want to make clear is that the mechanical damage that appeared over time was not the starting point of this story. The engine was subjected to almost a year of abnormal operation while I was trying to understand and solve a problem that appeared after that software version.
After opening the engine twice, checking every mechanical component and verifying the entire electrical system, I no longer believe that the root cause is mechanical.
Today, the situation has improved thanks to the corrections and adjustments that I personally made, but the engine still behaves in a way that I cannot explain. The combustion is still not correct, the exhaust gas temperatures are still higher than expected and I still cannot understand what continues to alter the fuel behavior in these specific conditions.
My question is very simple:
what exactly changed in the V3 software that could produce such a different behavior on my engine?
After a year and a half of tests, repairs, recalibrations and inspections, I honestly do not know where else to look.
I’m not writing this message to assign blame to anyone. I’m writing because I have reached the point where I need to understand what is happening and how I can finally use my car again after all this time
Over the last year and a half, I have collected logs covering the entire evolution of this problem, from the very beginning up to the present day.
If necessary, I can share any logs, calibrations and recordings from this period, showing all the tests and all the different solutions that I have tried in order to understand and solve this issue.
During this year and a half, I have tested every possible electrical, mechanical and calibration-related solution that I could think of, yet the problem is still present today.
For this reason, I would simply like to understand whether there is something in the V3 logic, fuel model or synchronization strategy that could explain this behavior on my particular setup.
**After a year and a half, thousands of euros spent on insurance, taxes, repairs and testing, I have reached the point where I need to decide whether to continue investing time and money in this ECU or move to a different solution. I sincerely hope we can find an answer before reaching that point.
