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fitted fixed turbo, v3 mani, and downpipe now no boost???? help

Discussion in 'A3/S3 Forum (8L Chassis)' started by JUS3IN, May 6, 2013.

  1. Scullies

    Scullies Well-Known Member

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    download a .csv reader to organise the file.

    The data is all over the place and no one is going to be able to help you out
     
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  3. Scullies

    Scullies Well-Known Member

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    justins log - best I could do atm

    Justin log 1.jpg
     
  4. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Anyone?
     
  5. superkarl

    superkarl MAN OF STEEL

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    Please delete the long post that means absolutely nothing.

    What are you looking for from these logs???

    Its requesting stock boost pressure if thats what you want. Its ok in that respect. Meeting what its mapped to make.
     
  6. Scullies

    Scullies Well-Known Member

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    ^ +1 on what Karl said. What's the actual issue now that your turbo has been sorted?

    Looks standard map, so its going to feel like there is no boost and slow.

    get that sucker CUSTOM mapped and take advantage of all the bolt on mods you have.
     
  7. Prawn

    Prawn My other car is a MINI!!!!

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    Somewhere around 200bhp, 0.8 bar of boost. Looks fairly stock to me.
     
  8. Scullies

    Scullies Well-Known Member

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    I thought it would be around 185bhp using the maf reading and dividing by 0.8
    148gs / 0.8 = 185
     
  9. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Ok that's good, the previous owner was bull****ting to cover the overboost then! Any other problems from that log? Think my other codes are related to lack of. Extra heat shield and lambda. Also 185 bhp? Atw I take it?
     
  10. Scullies

    Scullies Well-Known Member

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    No, at the crank :crying:
     
  11. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    That's terrible!? Its reading 1 to 1.1 bar on the guage?
     
  12. Scullies

    Scullies Well-Known Member

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    Mine shows the same boost as yours with the aftermarket bolt on's and stock map.

    also remember that the bhp/maf calculator is not a true reading. It's just an estimator
     
  13. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Ok cheers, once I get my welly cooler and injectors I'll be going for a custom map. Be few weeks yet though. Just gotta sort this heatshielding and high manifold boost pressure code, throttle position code now! Least we know its boosting as she should!-)
     
  14. Scullies

    Scullies Well-Known Member

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  15. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Cheers dude, you, bill, tuffty and darren are legends! All been a big help, I'll give it a try.
     
  16. Scullies

    Scullies Well-Known Member

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    I learnt everything I know from Bill and Tuffy, so they the legends round here dude.

    BTW by name is also Darren :)
     
  17. Prawn

    Prawn My other car is a MINI!!!!

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    I was trying to let him down gently :laugh:
     
  18. badger5

    badger5 www.badger5.co.uk
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    new maf on there? it might be under reading..
     
  19. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Nah its a used bosch one off ebay.
    So 148g/0.8 bar is 185 yes, how come 148/0.6 is 248? Think there's a flaw in that equation lads, 148/1 bar would be 148bhp????
     
  20. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Psi would work?
     
  21. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Ah, but the maf reading would be different right?
     
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  23. superkarl

    superkarl MAN OF STEEL

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    exactly as Bill said. Its a bad maf. a bit foolish to buy a used one off ebay. Get a brand new one (bosch) or borrow a known working one for a log to see if it IS the maf (likely)

    The 0.8 figure you divide the airflow by ISNT the boost. Its just a constant used to get a rough reading of horsepower.
    You take your logged airflow, divide it by the 0.8 constant, and this is your estimated Hp reading. Yours is low.
     
  24. Scullies

    Scullies Well-Known Member

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    You going to a new bosch maf for the remap and make sure its the correct part number. No generic, used or other VAG models will work.
     
  25. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    Ok great, understand now!-) yes after a cheap ebay maf I went used genuine lol, cheapskate, 1000 pound exhaust and 30 quid. Maf lol!
     
  26. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    how?
     
  27. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4

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    Done :beerchug:
     
  28. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    right just reset the throttle body, test drive another day as had some southern comfort!-) could them codes have affected the maf reading?? also any button way to turn off that darned service inspection warning flash?
     
  29. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    ta!-)
     
  30. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    how much should i expect to pay for a genuine new maf, got a part number? on ebay bosch s3 mafs new range from 80 to 120 quid!? what do audi charge?
     
  31. badger5

    badger5 www.badger5.co.uk
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    only flaw is your maths conversion..
    if all things are working efficiently maf g/s divide by 0.8 is an approximate bhp figure.
     
  32. JUS3IN

    JUS3IN 14.0 @ 98mph 2s 60ft

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    i know i know, its because prawn wrote 200bhp and 0.8 bar of boost, so i assumed it was maf divided by boost?-0
     

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