how to log air fuel corrections?

Discussion in 'Modifications And Maintenance' started by 83projectbrat, Apr 11, 2007.

  1. 83projectbrat
    Offline

    83projectbrat New Member

    Likes Received:
    0
    Trophy Points:
    0
    hey guys, i just had Clark make me a basemap for my sti, and he was wondering what the short and long tern air fuel corrections were. also if the knock correction is positive

    my question is... how do i do this untill i get my wideband? also he said you can do it with logging software or a scan tool? what kind of scan tool will do this? i have access to all subaru dealership tools

    Matt
     
  2. Bullwinkle
    Offline

    Bullwinkle Well-Known Member

    Likes Received:
    23
    Trophy Points:
    223
    You can log AF Correction and KC with a tactrix cable and ECULogger or Enginuity logger. It plugs into the ODBII port on the bottom of the dash of your car. Not sure the car requirements, but I do know that it works on any 2001+ WRX or STI.
     
  3. 83projectbrat
    Offline

    83projectbrat New Member

    Likes Received:
    0
    Trophy Points:
    0
    anyone know if you can log using the dealer subaru select monitor?
     
  4. WRX1
    Offline

    WRX1 _ Staff Member

    Likes Received:
    727
    Trophy Points:
    348
    Any obd-II scan tool will be able to show short/long term fuel trims. I would guess that the select monitor would also be able to show knock correction, but I haven't had a chance to play with one of those yet. But the fuel trims are std obd-II values, so if you have any kinda of scan tool (tari logger) and a cable (ap cable) you can watch those.

    Russ
     
  5. 83projectbrat
    Offline

    83projectbrat New Member

    Likes Received:
    0
    Trophy Points:
    0
    ok i have tari racing (open ecu) data logging software on the laptop, i can get all my data but how do you save it? or capture it
     
  6. 83projectbrat
    Offline

    83projectbrat New Member

    Likes Received:
    0
    Trophy Points:
    0
    ok i got it to work.... how should i drive the car when im data logging? very slow or should i get into the gas and hit boost?
     
  7. AWDimprezaL
    Offline

    AWDimprezaL has more posts than you

    Likes Received:
    1,818
    Trophy Points:
    573
    yes a select monitor will show knock correction, it will also show injector duty cycle, and some AFRs
     
  8. WRX1
    Offline

    WRX1 _ Staff Member

    Likes Received:
    727
    Trophy Points:
    348
    Well, if you want to log fuel trims, you want to drive just normal. Once the ecu cross's over, the fuel trim info won't do you much good. I am guessing that Clark wants to see your fuel trims so he can tell how far off your maf table is.

    Russ