Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: VW Golf Mk4 GTI Turbo

  1. #1
    Newbie
    Join Date
    Mar 2009
    Location
    Portugal
    Posts
    11

    VW Golf Mk4 GTI Turbo

    Hello there.
    I have a 20001 VW Golf Mk4 GTI Turbo with ISO9141-2 ecu protocol and i am wondering if there is a way of comunicating with my car ecu faster like CAN protocol.... can the protocol be changed from ISO9141-2 witch is slow to something faster...... all help is apreciated

  2. #2
    Variable Bitrate
    Join Date
    Oct 2008
    Posts
    376
    In theory the protocol could be changed to Can, BUT that would involve a lot of programming on the software of the engine ecu. You would have to rewrite all of the diagnostic software which is part of it. In practice the answer is no.
    For diagnostic purposes only you could use VCDS, which is a little bit faster than EOBD/OBD2 as long as you only request 1 measurement block (with 4 values).
    You can speed up the EOBD/OBD2 communication by limiting the number of pids you request.

  3. #3
    Newbie
    Join Date
    Mar 2009
    Location
    Portugal
    Posts
    11

    VW Golf Mk4 GTI Turbo

    I have a carpc installed im the car and i want to use dashcommand v2 embeded in centrafuse. But just running the demo version and witch has only the rev pid acive and the responce is still laggy. could it be that im using the elm 327 v 1.0 and not the more up to date version.



    Allso has anyone experienced Kiwi Wifi plus iphone or ipod revo software in this car or simmulor car with the same ISO protocal as mine.....

  4. #4
    VENDOR - ScanTool Vitaliy's Avatar
    Join Date
    Dec 2006
    Location
    Phoenix, AZ
    Posts
    624
    Quote Originally Posted by dooby_meu View Post
    Hello there.
    I have a 20001 VW Golf Mk4 GTI Turbo with ISO9141-2 ecu protocol and i am wondering if there is a way of comunicating with my car ecu faster like CAN protocol.... can the protocol be changed from ISO9141-2 witch is slow to something faster...... all help is apreciated
    It sounds like you've got a cargo version of the Time Machine: it not only allows you to travel through time, but lets you bring cars all the way back from the 21st millenium!

    What kind of refresh rate do you need? OBDLink can give you well in excess of 8 samples per second (provided your ECU can talk that fast).

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  5. #5
    Newbie
    Join Date
    Mar 2009
    Location
    Portugal
    Posts
    11
    I diden't just buy the elm 327 v1.0. I've had this for a long time. i will buy a more up to date version just not shore wether is worth buying the OBDLINK or any other's. will i notice a big diference to justify the cost of buying any other hardware.

  6. #6
    North of the land of Hey Huns
    Auto Apps:loading...

    Join Date
    Jun 2004
    Location
    Westminster, MD
    Posts
    2,127
    dooby_meu: My vehicle is ISO-9141-2 (The slowest protocol of them all) and I've gotten the highest speed from the OBDLink out of three different tools that I've tried. I think the fastest I got with the OBDLink was around 150ms inbetween samples which is near 13 samples per second! The second fastest was 200ms per sample so it was a huge improvement.

    Keep in mind, this was with one set of software, no other software was quite that fast with any tool, but overall the OBDLink was generally quicker to get responses. I also can't speak to the iPhone app Rev, since I've never used it.

    I can't guarantee the same results with your vehicle, but just sharing my ISO-9141-2 experience with you.


    Edit: surfntomm was right, my math fails. I was getting 150ms which is 6.67 samples per second with the OBDLink, and once I set it to ignore all but one ecu response I got it down to 75ms which is where the 13 samples per second number came from, but for standard request/responses 6.67 is more accurate.
    "stop with the REINSTALLS, what do you think we got some lame-o installer!!!" - mitchjs
    RevFE
    My Shop

  7. #7
    Low Bitrate
    Join Date
    Apr 2009
    Posts
    60
    how is that 13 samples/s with 150 ms period. am i missing something or is it just 1s = 1000ms/150ms = 6.67 samples per second.

  8. #8
    Newbie
    Join Date
    Mar 2009
    Location
    Portugal
    Posts
    11
    I've Had my car from new and i love it. After 9 years it still puts a big smile in my face.
    I do look after my car realy well and will keep it till it dies. I hope that it lasts many more years. I have a thew projects in mind but my main problem is my car ecu protocol not having fast comunication rate. this is so disapointing me and i cant get it out of my head that the car has the slowest ISO Protocol and theres no way around it... There must be a solution some how. please help!!!!!!!

  9. #9
    Newbie
    Join Date
    Mar 2009
    Location
    Portugal
    Posts
    11
    Has anyone here ever changed their car ecu protocol... example ISO9141-2 To CAN....
    Does it involve only programming on the software of the engine ecu or do i need to rewire the car obd2 port...
    Someone must of tried this before.....

  10. #10
    lez
    lez is offline
    FLAC lez's Avatar
    Join Date
    Jan 2004
    Location
    UK
    Posts
    1,334
    just bought a cheap cable (well a friend has but he's not a carpc buff) and it said to use with vagcom ?

    whats that wheres it from?

    what can i use with the cable?
    Lez, more widely known as flez1966

Page 1 of 2 12 LastLast

Similar Threads

  1. Eeepc as CarPc 2000 Golf Mk4 GTI
    By zanerv in forum Show off your project
    Replies: 17
    Last Post: 10-04-2009, 08:57 AM
  2. VW Golf 3 GTI car pc introduction
    By azizi in forum Worklogs
    Replies: 23
    Last Post: 05-31-2007, 12:58 AM
  3. i need help with my VW golf gti
    By dLc in forum Car Audio
    Replies: 4
    Last Post: 03-16-2007, 08:42 PM
  4. VW Golf TDi MK4 2002 ODB cable confusion - which one is the right cable?
    By f1lby in forum Engine Management, OBD-II, Engine Diagnostics, etc.
    Replies: 3
    Last Post: 02-19-2007, 07:19 AM
  5. VW Golf IV GTI monitor Position
    By sandroad in forum LCD/Display
    Replies: 0
    Last Post: 08-03-2004, 07:06 AM

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
  •