Results 1 to 4 of 4

Thread: Logging Tactrix ADC channel to EvoScan

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Forum User
    Join Date
    May 2014
    Owner Since
    1998

    Location
    TX
    Posts
    57
    Thanks
    10
    Thanked 0 Times in 0 Posts

    Logging Tactrix ADC channel to EvoScan

    Let me first say I am new to EvoScan and Tactrix. In my time I've done plenty of diagnostics, repairs, upgrades etc for a career but mostly I was into playing with older cars (I miss my '69 Mach 1 ). I am now a programmer and do not miss the wrenching life at all but love to help friends and tinker here and there. I've had my '94 SL for 16 years and it's been in the garage with a busted water pump for 2 years. Luckily I knew what happened and shut it off before the belt broke. Got it running and back on the road within a couple of days (took that long because I kept finding parts I should replace lol). I'm now starting to fix it up and wanting to play around a bit so I ordered a Jesters Chromed ECU along with some other bolt on parts. They actually make them for SLs now . I now have my Tactrix and an AEM single channel WBO2 and am waiting on the Jesters. I want to log my WBO2 with my existing ECU and parts to gauge the improvements the Chromed ECU and different parts make and how bad my car really was before. I've been doing a lot of reading of Greg's stuff and a lot of the same stuff on chromedecu.org and have a long ways to go but I love my GT and am really looking forward to this project.

    Here is my question. I can connect the AEM 0-5v to the OBD2 pin 8 (after removing the ABS (I think) diagnostic wire) and log directly to the micro SD using the Tactrix ADC channel, but can that be logged by EvoScan? I got a logcfg.txt file from a guy logging his WRX on an SD card and he is using pin 8 for WBO2 so I know that part works. I've been googling and searching forums but the only post I found was from 2 years ago on the openecu forum saying EvoScan did not support that at the time. So does anyone know if EvoScan does this now?

    If that will not work and I have to log directly to an SD card can anyone verify my scalingrpn in the last line of my script?

    other guys original source logcfg.txt file using Zeitronix Wideband:
    ;----------------adc----------------
    type=adc ; log from built in ADC channels

    paramname=AFR ; on newer subarus pin 8 is connected to the ignition voltage
    paramid=8 ; paramid is pin number on OBD connector
    ; valid pins are 8 and 16
    ; values are pre-scaled to millivolts
    scalingrpn=x,0.002,*,9.6,+ ; here we scale to volts
    What mine should look like with AEM?
    ;----------------adc----------------
    type=adc ; log from built in ADC channels

    paramname=AFR
    paramid=8 ; paramid is pin number on OBD connector
    scalingrpn=x,2.375,*,7.3125,+ ;AEM's scaling for gasoline AFR = 2.375*V + 7.3125
    My sources for this script are
    openecu.org ? View topic - Tactrix 2.0 logging analog signal from Zeitronix-WORKING!!!
    http://www.scoobymods.com/showthread...-0-13396.html?
    Last edited by opy01; 05-18-2014 at 07:40 PM.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive
Jim's (RED3KGT) Reststop
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering