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need help guys

Discussion in 'A4/S4 forum(B5 Chassis)' started by billybravo, Jun 15, 2007.

  1. billybravo

    billybravo MODERATOR

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    ive got a 2 probs with my 1.8T

    1. the car idles fine and also drives ok but as soon as i hit just over 0.6 bar of boost the engine is really slugish like its farting as it tries to make more boost the prob gets worst like a missfire but i dont think it is.

    2.also while im here i replaced my coolant sensor last month the 4pin black one but my gauge only seems to work when it wants to. is the gauge on a diffrent sensor. there is a blue sensor with 2 pins next to the black 4 pin one could this be it

    cheers

    craig


    Also i dont have any codes coming up on vag

    help please
     
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  3. billybravo

    billybravo MODERATOR

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    well to cure the second prob im going to get a new stat coz i think its sticking open.

    but i still cant slove the first prob HELP !
     
  4. Soupie69uk

    Soupie69uk Owner

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    You checked your spark plugs?
     
  5. billybravo

    billybravo MODERATOR

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    no
     
  6. billybravo

    billybravo MODERATOR

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    checked the plugs there fine i dont think it has anything to do with the igintion side of things could it be the fuel pressure reg?
     
  7. billybravo

    billybravo MODERATOR

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    ok ive found today that this only happen under full load the car hesitates then picks up

    any ideas

    thanks

    craig
     
  8. hiltoa

    hiltoa VAG erfahren

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    Squishy inlet pipe collapsing under boost?
     
  9. billybravo

    billybravo MODERATOR

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    i think it could be my mass air flow meter does anyone have a write up on how to clean them
     
  10. jimya4t

    jimya4t Member

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    i had the same problem. is it fine if you dont put your foot down and let it build up? does it just happen when you floor it or even just a bit? mine done this like i was kangarooing the car lol and it ended up it was the N75 valve. could be this?
     
  11. billybravo

    billybravo MODERATOR

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    cheers i will have alook i did check it on vag and i could hear it working ok but i will swap it for one out of my mates see if that works
     
  12. Caesium

    Caesium My BM is fixed!
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    Does sound like a dodgy plug to me, had the same problem, different car and it was the plugs.
     
  13. billybravo

    billybravo MODERATOR

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    ok ive ordered a new set ngk bk6e's which i will set at 0.28 gap and im going to be getting a new maf tomorrow from eurocarparts or gfs parts lets hope all this does the trick
     

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