Wiring a vr6 tb to a agu loom

Discussion in '1.8 & 1.8T' started by nut 20v, Mar 25, 2013.

  1. nut 20v

    nut 20v CGTI Regional Host - Birmingham & Midlands

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    Hi im wanting to fit a vr tb to my 1.8t agu i have 3 wires on my vr tb and think 5 on my agu (could be wrong) does anyone know what wires go where and what i have to do to make it fit cheers in advance.
     
  2. sambo Paid Member Paid Member

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    You will need wiring diagram to pinpoint 3 wires which you will need going to your ecu

    +5v
    - neg
    signal return

    And connect them to your throttle pot respectively

    If you no diagram then wires you need can be found by means of simple multi meter dc voltage tester
     
  3. rallye1.8t Forum Member

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    obd2 vr6 throttle body plugs straight in. :-)
     
  4. nut 20v

    nut 20v CGTI Regional Host - Birmingham & Midlands

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    Cheers just a case of changing TB's then.
     
  5. rubjonny

    rubjonny Administrator Staff Member Admin

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    yeah pre-96 vr6 throttle body is no good as it only has a tps, the agu needs a post-96 vr tb which has the stepper motor inside. otherwise your agu will never idle properly
     
  6. sambo Paid Member Paid Member

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    Good to know :)
     
  7. GTIGADGE Forum Member

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    Did you ever get around to sorting this out mate. I need to fit an AGU TB to get my stupid Qpeng for it to run properly (previous owner engine change but fitted 3 pin TPS and these need calibrated to suit, PITA) and I have the same question. I have 3 wires but which one goes to what pin on the AGU TB plug positions?
     
  8. nut 20v

    nut 20v CGTI Regional Host - Birmingham & Midlands

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    Hi all i did is use the obd 2 vr throttle body as im using stock acu
     

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