Audi Q7 chiptuning fix in DE

Audi Q7 3.0 TDI – fix by a "tuner" from Germany
The customer came for diagnostics and engine software modification. It turned out that the power had already been increased - most likely in Germany. However, the modification cannot be called successful!
On the graph you can see the course of factory power - on the chip from Germany and after our correction.
Due to overheating and high DPF soot load, the car returned to factory parameters at high load!
The way to improve was to optimize the exhaust gas temperature and improve the fuel dosing strategy (from botched to correct)
What did we find?
Boost pressure raised too aggressively
Changes in fuel dosage without appropriate correction – smoke and increased EGT.
The values ​​in the torque maps do not make much sense – the power curve is "jerky", lacks smoothness.
Extended injection time - worse combustion conditions

Corrections by us:
Stabilized boost values ​​– safe for the turbine.
Precise correction of fuel doses – improved work culture.
Smoother torque increase – real better performance without risk to the unit.

The result? The Audi finally drives as it should – without smoking, without unnecessary loading of components and with a correctly calibrated controller.

Do you have a car after a botched tune-up? It's better to check it out before an avalanche of expensive breakdowns begins.