Why does it not have any effect on car performance, the map is made for full rail pressure anything else is related. If the pressure is normal again the fuel will be better injected and my car goes better in the upper rpms. Can you explain why u saying it wouldn’t change anything? That would be against every good diesel Tuning in my opinion. For example, the car of my friend is slightly more aggressive (faster) under full engine load, with the same setup. The only difference that shows up is the rail pressure, and the ecu regulate any related actuator that depends on the rail pressure. Correct me if iam wrong.
Greetings 1uck3r