Volks AutosAH Fabrications
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  1. #1
    Reverse Gear

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    Exclamation ASV schematics/pinout

    Does anyone with ELSA access has the electrical diagram for the ASV valve?, the 4 pin one

    Also, what are the expected I/O signals?

    aaaand i know this is probably impossible, but the schematics for the control circuitry inside the ASV would be a plus

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  3. #2
    mjr901's Avatar
    S3 Pollution Plus+ Edition

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    Absolutely no idea what this is, but a man who is very technical on this forum is NHN.

    Private message him here ------> Send Private Message
    2012 Ibis Black Edition S-tronic S3, 3 Door, Shark Stage 2, MTC Intake Kit, Powerflex Fast Road Dogbone Mount, Full Non Res Milltek Exhaust, Forge Development Intercooler + DV system,
    340bhp Mikes Ibis BE 2012 S3...

  4. #3
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    many thanks, i've found the wiring schematics ( Autotecnic2000.com )
    but i don't know HOW is it controlled, what kind of signal is sent to/from the ASV unit

  5. #4
    mjr901's Avatar
    S3 Pollution Plus+ Edition

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    Quote Originally Posted by Eliminateur View Post
    many thanks, i've found the wiring schematics ( Autotecnic2000.com )
    but i don't know HOW is it controlled, what kind of signal is sent to/from the ASV unit
    --------->

    Rather you than me with this!

    Good luck!
    2012 Ibis Black Edition S-tronic S3, 3 Door, Shark Stage 2, MTC Intake Kit, Powerflex Fast Road Dogbone Mount, Full Non Res Milltek Exhaust, Forge Development Intercooler + DV system,
    340bhp Mikes Ibis BE 2012 S3...

  6. #5
    A3 SportBack 2TFSI quattro DSG

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    Pin 1 is -/ground
    Pin 2 is +/12v
    Pin 3 and 4 is analoug signal for directional and opening/closing level. Probably +/-5v regulating like a servo.

    Not 100% sure thou.
    What does this valve do?

    God luck
    Best regards

    J$B
    Norway

  7. #6
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    but which one of 3 and 4 is input and output?, both of them can't be inputs has a simple PWM input can be used to set the desired opening level in %
    the ASV it has 2 functions: antishudder on stop (and preventing a engine runaway as well if it's happening) and modulating the air intake ammount to optimize EGR "suction" (i.e.: closes the air intake so the engine sucks more EGR gases)

    engine is perfectly "functional" without it(other than the CEL light turning on and violent shudder on shutdown) and it's quite an expensive bugger so i want to fix it myself

 

 

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