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Thread: speedo calibration problem ...

  1. #1
    Join Date
    Jul 2009
    Location
    Geelong, Victoria
    Posts
    859
    Users Country Flag

    Question speedo calibration problem ...

    After the 1.8T swap into my mk4 (originally a 1.6) I have found that the speedo is reading about 10 kph under the actual speed.
    This was checked with a gps of known quality. And a speeding ticket...

    So at an indicated 100 kph I am actually doing 112 kph.
    Other speeds: first number is indicated, second is actual:

    20 27
    50 58
    60 70
    80 90
    100 112

    You can change small errors via vagcom, but can you sort one this big?

    I am running standard wheels, so nothing is going on there: 205/55/16. Original cluster, new ECU (the one that came with the engine)

    I have searched here , vortex and ukmk4 sites and cant seen to find what I am after.

    Speed sensor change perhaps - but which one?

    Vagcom thinks the car is going it's indicated speed

    Please help, this is a pain
    My build thread here: 1.6 sr into 1.8T http://www.vwwatercooled.org.au/foru...-8t-63249.html

  2. #2
    Join Date
    Jul 2009
    Location
    Geelong, Victoria
    Posts
    859
    Users Country Flag Thread Starter
    thoughts, links, Ideas????
    My build thread here: 1.6 sr into 1.8T http://www.vwwatercooled.org.au/foru...-8t-63249.html

  3. #3
    Join Date
    Mar 2010
    Location
    Lesmurdie
    Posts
    1,019
    I've been told that you can get your speed o re calibrated so might look into that? Might just be due to a different method in the speed sensors between engines?

    2001 Turbo! 4mo Bora 'Boring' | Carbinaro CAI | Fixing broken stuff | Sorting the Turbo Goodness! | BBS Lm's 18x8.5 | KW V2's | 4 pot Brembo's

  4. #4
    Join Date
    Jul 2009
    Location
    Geelong, Victoria
    Posts
    859
    Users Country Flag Thread Starter

    I'm thinking so as well, but was hoping for a software solution I could do....
    My build thread here: 1.6 sr into 1.8T http://www.vwwatercooled.org.au/foru...-8t-63249.html

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