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Re: EGR P0401 insufficient flow after flashing Base US93/EU98 map

Posted: January 23rd, 2023, 4:29 am
by Maxl
Hi,
I don't know why but it is like it is. When I remove versatune than it's like I wrote above. It's not a problem but I would like to know why it's like that :-D

Re: EGR P0401 insufficient flow after flashing Base US93/EU98 map

Posted: January 24th, 2023, 10:00 pm
by mituc
Ok, please load this logging preset: https://www.dropbox.com/s/4sru1ehbdb851 ... vtpre?dl=0
...and take logs when starting the car (so start the logging before starting the engine) and let the car idle for 2-3 minutes and log all this.
Repeat this with versatuner on (also let me know what tune you put on) and with the car fully returned to stock.

Re: EGR P0401 insufficient flow after flashing Base US93/EU98 map

Posted: January 26th, 2023, 7:21 am
by Maxl
Hey,

Okay I will do this. But I have to wait until it's a little bit warmer outside. At Winter temperatures the Coldstart RPM are in general lower.

Greets

Re: EGR P0401 insufficient flow after flashing Base US93/EU98 map

Posted: January 27th, 2023, 12:44 am
by mituc
Maxl wrote: January 26th, 2023, 7:21 am At Winter temperatures the Coldstart RPM are in general lower.
I see, so you may indeed have to clean the throttle body...