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  1. #1
    Active Member One Ring white01audi's Avatar
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    Aug 23 2010
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    95 Pontiac Grand am (Beater)
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    Sussex WI

    Boost issue!!!

    HI I have been having a problem since I got my ecu chipped with the giac program and installed a boost gauge I will hit full boost then instead of it holding it will start dropping. I have checked most vac lines my vac at idle is 19 and I just replaced the N75 valve and it seemed to hold pressure better and more constant but still wont hold it at full boost @ WOT. If anyone has idea's please let me know. I want to start by saying I ve been working on car and used many forums so I know what the rules and how it works and I do use the search button a lot if I need to figure something out but for something it's easier putting a post up.


    Thanks

  2. #2
    Veteran Member Four Rings Gaberossi's Avatar
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    check all vac lines...check valves need to be inspected as well...SAI as well
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
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  3. #3
    Active Member One Ring white01audi's Avatar
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    95 Pontiac Grand am (Beater)
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    Sussex WI

    i have aftermarket intake will air still leak out the SAI port if not plugged up? I have it just sitting there open

  4. #4
    Veteran Member Four Rings Gaberossi's Avatar
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    Parkland,FL

    plug it in see what happens
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  5. #5
    Active Member One Ring white01audi's Avatar
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    k thanks!

  6. #6
    Veteran Member Four Rings Gaberossi's Avatar
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    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    inspect those check valves though...they are most likely your problem. chipped k03 should spike 18 start to die off around 4800-5200 rpm and you should hold about 10-14psi til almost red line...what boost levels are you seeing?
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  7. #7
    Active Member One Ring white01audi's Avatar
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    it will spike up to 18/20 psi some times then drop towards 15 almost right away then continues to drop towards 10psi I can load a video to show you today! I also notice it when the car is been really warm for a while.

  8. #8
    Active Member One Ring white01audi's Avatar
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    Here are some video's I couldn't do much more then that because there is a lot of cops in my area that just looking to nail someone for excessive acceleration or speeding


    http://s886.photobucket.com/albums/a...chpanfil/AUDI/

  9. #9
    Active Member One Ring white01audi's Avatar
    Join Date
    Aug 23 2010
    AZ Member #
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    Boost Issue

    Here are some video's I couldn't do much more then that because there is a lot of cops in my area that just looking to nail someone for excessive acceleration or speeding


    http://s886.photobucket.com/albums/a...chpanfil/AUDI/

  10. #10
    Veteran Member Four Rings Gaberossi's Avatar
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    My Garage
    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    your boost looks okay... if you are running stock inlet pipes and intercooler piping that looks right...the k03 is such a small turbo it cant hold boost that long...on my k03 before it blew it was holding 11psi until 5500rpm then i would shift.
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  11. #11
    Active Member One Ring white01audi's Avatar
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    Aug 23 2010
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    ok I have had a turbo car in the past and it just didn't seem right! I rather check. It sometimes stutters at full boost could the waste gate be going or fuel pump? I replaced all coils and plugs so its not a miss fire.

  12. #12
    Veteran Member Four Rings Gaberossi's Avatar
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    May 12 2009
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    My Garage
    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    stutter? is it a slight bump in the rpm or does the car bog down? gotta be specific to find the problem...it could be about 10 different things
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  13. #13
    Active Member One Ring white01audi's Avatar
    Join Date
    Aug 23 2010
    AZ Member #
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    car doesn't bog down it's like a very quick miss fire without causing a check engine light. It only happen sometimes. The boost gauge just bumps down and you feel a little bump. Kinda hard to explain

  14. #14
    Veteran Member Four Rings Gaberossi's Avatar
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    May 12 2009
    AZ Member #
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    My Garage
    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    got fresh spark plugs in there? I change mine out every oil change.
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  15. #15
    Active Member One Ring white01audi's Avatar
    Join Date
    Aug 23 2010
    AZ Member #
    63128
    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    new plugs and coil

  16. #16
    Veteran Member Four Rings Gaberossi's Avatar
    Join Date
    May 12 2009
    AZ Member #
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    My Garage
    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    also when was the last time you changed the fuel filter?
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

  17. #17
    Active Member One Ring white01audi's Avatar
    Join Date
    Aug 23 2010
    AZ Member #
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    My Garage
    95 Pontiac Grand am (Beater)
    Location
    Sussex WI

    they are pre-gapped and I checked them of course. The fuel filter not sure. I just got the car so Ill have to look into that.

  18. #18
    Veteran Member Four Rings Gaberossi's Avatar
    Join Date
    May 12 2009
    AZ Member #
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    My Garage
    Volcano Black Audi A4 pte5857, 2022 Outback, 97 civic ex(blew up), 95 Toyota pickup(sold)
    Location
    Parkland,FL

    are they gapped correctly? should be 0.28
    99.5 A4 1.8TM AEB Fronttrak - Volcano Black Mica - AutoFlex'd Signal Green - E85 - Clutchmasters 725 series twindisk - ID1000cc - Precision 5858 cea Ball Bearing Turbo - JE Pistons/IE Rods - EurodyneMe - Coilovers - AWE DTS - 034 Mounts - Team Dynamic Wheels -Nitto INVO -Working @ DipYourCar.com - Usp Motorsports -
    Click>>>>>My Build Heel-Toe'n the b5 everyday =P

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