jurebv wrote:Im not able to review your file right now but based on your first try Im sure its fine ;) just dont forget to log actual and specified boost to see if you need any adjustments in n75 map
If you will check it out later, it is very good for me. Respect, and a big thanks for your help and work! :thumbup:
The car seems to run fine, nothing is urgent for me.
I did some logs yesterday:
-group003 EGR: as target MAF is 880, EGR doesn't open until MAF reaches it (duty cycle 4,8-19%), but when MAF reaches 880 at partial load, EGR duty cycle goes up to 54-60%). At full throttle duty cycle doesn't go up. Should I set the target MAF to a higher level (1150)to fully prevent EGR open?
-group 011 charge control:
I did acceleration 5 times in 3rd gear from 1500 to 4000 rpm, full throttle: 3 times everything seemed OK, but 2 times there was a small spike at 1900-2000rpm: target boost is 2000mbar @ 2000rpm, but the pressure jumped a bit (1 time to 2050mbar, 1 time to 2100 mbar). Because 2100mbar is the boost limit at 2000rpm, ECU modified the vanes positions, the pressure dropped to 1950mbar for 2-3 secs (while the rpm went up, where the target boost was over 2000mbar). In 4th gear this didn't happen.
This is a small spike, and in 8 measurements (5x 3rd gear, 3x 4th gear) it appeared 2 times, 1x disappeared by itself, the ECU did a serios modification 1 time because the boost limit. I think that in 3rd gear thee rpm goes up very quickly from low rpm, the turpo spins up and starts to flow very quickly, and it is hard for the ECU to prevent this small overrun. Do I have to modify the N75 map? Or is it enough if I set boost limit from 2100 to 2150 in the low rpm range?