×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

ECU SW

ECU SW

(OP)
Hi

Are there free software available which would enable me to download my ECU map via my OBDII port using a Rosstech VAG cable?

MX

RE: ECU SW

Hi,

If there was anything than VAG, I would have probably said : NO, but for VAG there might be. VAG protocols are like LINUX (more available and published) comparing to other cars that could be like windows ;)

 I would like to know if you have found any. Please update us as well if you find one.


Cheers


You can live in your car, but you can't drive your House!

RE: ECU SW

The OBDII DATA may be aquired (downloaded) but the actual MAPS (fuel, ingition, etc.) can't be, I don't think.
That data is stored in the memory chips inside the ECU.
SOmetimes they are called "MemCal" chips.
MemCal is "memory calibration" and must be read directly from the chips.
I believe some of the values may be modified and written back to the memory via ODBII interface.
Not sure the complete calibration data is available via OBDII but..I sould be wrong. I'm more familiar with OBDI which provides a datastream but not the fuel, ignition, etc. maps themselves.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources