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Hi all, new here. ECU protocol.

Discussion in 'VY Holden Commodore (2002 - 2004)' started by bencld, Jun 2, 2008.

  1. Jun 2, 2008 #1
    bencld

    bencld New Member

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    New here. Have a VY series II with factory fitted LPG. This may heve been asked before so here goes.

    Does anyone know if the after market ECU readers will talk to the ECU on a VY ? The one I am looking at is a CAN OBD II code reader. It says it will talk to most vehicles made after 1996. Does anyone know what the protocol is ?

    Ta.
    Chris.
     
    bencld, Jun 2, 2008
    #1
  2. Jun 4, 2008 #2
    accentstencil

    accentstencil Well-Known Member

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    I recently bought what appears to be the same scanner and it seemed to work OK except for one problem. I asked Doctor Bob (who is a very wise man) about it. Below is my question to him followed by his response. It may or may not help you.
    I bought the scanner to read and clear codes, so in this instance it is not working for me. That is not to say it wont read any codes.
     
    Last edited: Jun 4, 2008
    accentstencil, Jun 4, 2008
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  3. Jun 4, 2008 #3
    Doctor Bob

    Doctor Bob Grandpa

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    the VY V6 doesnt use CAN or OBD2
    it uses UART comms
    any interface will only be as good as the software, most aftermarket software will not pick up manufacturer specific DTC information.

    Rob
     
    Doctor Bob, Jun 4, 2008
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  4. Jun 4, 2008 #4
    accentstencil

    accentstencil Well-Known Member

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    Well there you go. I told you he is wise.
     
    accentstencil, Jun 4, 2008
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  5. Jun 27, 2008 #5
    bencld

    bencld New Member

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    Thanks for the replies fellas. Any aftermarket software that will run with an elm327 and a laptop to read the VY ecu ?

    Ta.
    Chris.
     
    bencld, Jun 27, 2008
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  6. Jun 28, 2008 #6
    Doctor Bob

    Doctor Bob Grandpa

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    the elm chip isnt compatible with the VY comms,
    get EFILive V4 & a UART interface
     
    Doctor Bob, Jun 28, 2008
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