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DIS adjustments to match MPG after mapping.

Discussion in 'A3/S3 Forum (8L Chassis)' started by Westy, Oct 7, 2012.

  1. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    Does anyone know if there's anyway of adjusting the DIS calculations to get them anywhere near what MPG should be after changing FPR or injectors? After fitting 550cc injectors I was getting an mpg reading of 49.2mpg but could physically see the fuel needle going down lol.

    There must be a way to calculate the differences with the new injectors and then edit it with VCDS or similar. Anyone bothere to investigate?
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  3. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    [Oct 7, 2012]
    I think theres a guide on modshack mate, i read ages ago about fitting kne of their aftermarket maf tubes and and a 4bar fpr but in doing so it messes up the dis readings, ill try and find but im on the iphone at the minute and we all know how ahit they are lol.
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  4. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Oct 7, 2012]
    You cant adjust it that much with VCDS

    You need to adjust KVB table in the map, very surprised nick hasnt updated that tbh! I'd be asking him to fix it.
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  5. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    I did ask him but it's not something he spends his time on when doing the map.

    I might get on over to the tuning forum he and bill uses and start reading up. I don't mind the dis being slightly out but it's totally pointless now as its so inaccurate I might as well just leave it switched off.
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  6. beachbuggy
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    beachbuggy Well-Known Member

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    [Oct 7, 2012]
    Like kev says very easy 1 map, I've got the 550cc value.
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  7. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    Lovey stuff mate. Can you drop me the info via PM or on this thread please?
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  8. coatesy
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    coatesy poking badgers with spoons

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    [Oct 7, 2012]
    its good because you think your getting loads of mpg :D i get at least 35-40mpg in the a3 now its all good :D even better than it was before and now its got nearly twice the bhp.

    just stop been a girl ;) its not even accurate anyway is it ?
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  9. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    That's why I want to make it accurate. It must only be a few simple calculations in a table to make it a little bit closer then it is already. Even if I just up the stock values across the table to match the increase from the 550cc injectors it'll be better then nothing.
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  10. beachbuggy
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    beachbuggy Well-Known Member

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    [Oct 7, 2012]
    Values? It's one value...
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  11. coatesy
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    coatesy poking badgers with spoons

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    [Oct 7, 2012]
    true ! i just think as long as i get 300 miles to a tank its all good !

    i suppose at the end of the day what's the point in having a highly tuned car if your going to worry about mpg.

    but that's my 22 year old point of view that has no mortgage or bills to pay!
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  12. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    It's nothing to do with money or worrying about mpg. I just don't like things that don't work. ;)
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  13. coatesy
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    coatesy poking badgers with spoons

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    [Oct 7, 2012]
    is that a OCD confession there :D i know what your saying, i just have mine turned off on the dash so i cant see the completely wrong numbers.
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  14. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 7, 2012]
    just set kvb to 550cc... its a 1:1 value in cc (scaler is set to 1:1 as std) to a max of something like 730cc, thereafter you need to adjust the scaler also.. Not relevant to you
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  15. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    This post appears to be written in a language I don't understand! Can you explain it for slow simple people like me please bill ;)
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  16. jojo
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    jojo S3 Drift King! Staff Member Moderator

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    [Oct 7, 2012]
    I switch mine off, mpg readings are overrated!
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  17. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    I'm more worried about the range to be honest! I have visions of my GF ignoring the beeping petrol symbol because the range says she can still do 100 more miles lol
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  18. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 7, 2012]
    lol

    1st few words are what you would do...
    change kvb to 550

    for fine adj maybe try this afterwards

    #17
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  19. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    What's KVB Bill?
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  20. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 7, 2012]
    ffs........ its the map name westy

    ask niki to adjust it for you
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  21. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    I asked you to explain it to me in simple terms. You can't explain just half of it lol.
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  22. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Oct 7, 2012]
    easy, ask Niki to adjust KVB to 550 (or actual 548) and adjust the final 10% either way with the dash adaption.

    Otherwise it will be out.

    The miles left will drop in relation to the gauge reading so it may show 200 miles, then when parked up drop to 100 etc. As long as the GF pays attention to the gauge then it's all good Westy
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  23. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    I'm in the car tomorrow and doing 100 miles so it'll be nice to see how much the gauge goes down.
    #22
  24. Prawn
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    Prawn My other car is a MINI!!!!

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    [Oct 7, 2012]
    You don't half ask a lot of questions westicles. I'd have thought with all the acronyms beginning with K that have been flying around lately you'd have guessed it was mapping stuff speak :laugh:
    #23
  25. dre_S3
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    dre_S3 Member

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    [Oct 7, 2012]
    I'm not the only one that shares the car with the other half then :) just explain everything until you get it sorted

    atb

    dre
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  26. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Oct 7, 2012]
    All this YMCA 1D TOWIE map speak is confusing me!
    #25
  27. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Oct 8, 2012]
    it does'nt get any simpler westicles

    job for niki
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