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    Thread: 04 1.8t gli / boosting issues please feel free to help

    1. 12-28-2011 10:08 AM #1
      I buddy of mine has a 04 GLI 1.8T and has been having some issues for a month or so, I scanned his car and came up with the following codes. I have replaced the N75 valve, boost sensor, installed a samco turbo inlet boot, new front O2 sensor. I don't want him to keep throwing money into this but is there any test that can be done to determine if the MAF is causing his car not to boost past 0 It's getting annoying, it's either the MAF or Wastegate. I am open to all suggestions.

      Thanks

      10 Faults Found:
      16622 - Manifold Pressure / Boost Sensor (G31)
      P0238 - 35-10 - Signal too High - Intermittent
      16804 - Catalyst System; Bank 1
      P0420 - 35-10 - Efficiency Below Threshold - Intermittent
      17544 - Fuel Trim: Bank 1 (Add)
      P1136 - 35-10 - System too Lean - Intermittent
      16555 - Fuel Trim; Bank 1
      P0171 - 35-10 - System Too Lean - Intermittent
      16517 - Oxygen (Lambda) Sensor B1 S1
      P0133 - 35-00 - Response too Slow
      16795 - Secondary Air Injection System
      P0411 - 35-00 - Incorrect Flow Detected
      18613 - Performance Malfunction in Cooling System
      P2181 - 35-10 - - Intermittent
      17956 - Boost Pressure Regulation Valve (N75)
      P1548 - 35-10 - Open Circuit - Intermittent
      16485 - Mass Air Flow Sensor (G70)
      P0101 - 35-10 - Implausible Signal - Intermittent
      17511 - Oxygen (Lambda) Sensor Heating; B1 S1
      P1103 - 35-10 - Performance too Low - Intermittent
      Readiness: 0000 0001

    2. Semi-n00b
      Join Date
      Apr 18th, 2011
      Location
      Tunkhannock, PA
      Posts
      11
      Vehicles
      2002 VW Jetta 1.8T
      12-31-2011 11:11 AM #2
      From what I can tell it seems like you might have a vacuum leak. Have you tried doing a leak test? I think the reason you're getting all the inefficiency codes is because the engine is sensing extra air that it hasn't found when going through the MAF. Check out this link http://www.audizine.com/forum/showth...st-Leak-Tester Also if you have access to a smoke machine it will also help in visually showing you where the leaks are. When I first bought my car I had a HUGE leak in the PCV lines under the intake manifold, 3 mins of letting the smoke machine run and saw it pouring out from under the intake.

    3. 01-01-2012 08:23 PM #3
      Complete Auto-scan please.

    4. 01-02-2012 12:16 AM #4
      I will post the entire scan tomorrow. But so far I've replaced the MAF / N75 / boost sensor @ turbo Inlet pipe. I've performed many leak test and everything isn't air tight. My thought either ECU / Throttle Body or wastegate. Car has decent power but won't budge past 0 psi .
      Please help

      Thanks

    5. Member Josein06GLI's Avatar
      Join Date
      Jun 28th, 2008
      Location
      San Diego, Ca
      Posts
      3,933
      Vehicles
      2012 Audi , 2006 VW Jetta GLI, 1989 MK2 GTI VR6
      01-02-2012 12:23 AM #5
      Are u getting vacuum? Check boost gauge and taps for gauge. EVO and intercooler piping.
      2006 BMP VW JETTA GLI DSG some coils, some bolt ons and some wheels.
      1989 VW GTI 2.8l VR6 some coils, some bolt ons, and some wheels.
      2012 Audi all stock, its hers. she dont want me messing with it...yet.

    6. 01-02-2012 11:01 PM #6
      Tuesday,20,December,2011,16:24:01:09916
      VCDS Version: Release 11.11.0 (x64)
      Data version: 20111111



      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Chassis Type: 9M - VW Jetta IV
      Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
      75 76

      VIN: 3VWSE69M54M145053 Mileage: 132560km/82368miles
      -------------------------------------------------------------------------------
      Address 01: Engine Labels: 06A-906-032-AWP.lbl
      Part No: 06A 906 032 SM
      Component: 1.8L R4/5VT G 0030
      Coding: 07510
      Shop #: WSC 12338
      VCID: 7BFB396369FE7F6
      3VWSE69M54M145053 VWZ7Z0D9544986

      10 Faults Found:
      16622 - Manifold Pressure / Boost Sensor (G31)
      P0238 - 35-10 - Signal too High - Intermittent
      16804 - Catalyst System; Bank 1
      P0420 - 35-10 - Efficiency Below Threshold - Intermittent
      17544 - Fuel Trim: Bank 1 (Add)
      P1136 - 35-10 - System too Lean - Intermittent
      16555 - Fuel Trim; Bank 1
      P0171 - 35-10 - System Too Lean - Intermittent
      16517 - Oxygen (Lambda) Sensor B1 S1
      P0133 - 35-00 - Response too Slow
      16795 - Secondary Air Injection System
      P0411 - 35-00 - Incorrect Flow Detected
      18613 - Performance Malfunction in Cooling System
      P2181 - 35-10 - - Intermittent
      17956 - Boost Pressure Regulation Valve (N75)
      P1548 - 35-10 - Open Circuit - Intermittent
      16485 - Mass Air Flow Sensor (G70)
      P0101 - 35-10 - Implausible Signal - Intermittent
      17511 - Oxygen (Lambda) Sensor Heating; B1 S1
      P1103 - 35-10 - Performance too Low - Intermittent
      Readiness: 0000 0001

      -------------------------------------------------------------------------------
      Address 03: ABS Brakes Labels: 1C0-907-37x-ESP-F.lbl
      Part No: 1C0 907 379 M
      Component: ESP FRONT MK60 0102
      Coding: 0019970
      Shop #: WSC 00066 000 00000
      VCID: 3469D25F542070E

      No fault code found.

      -------------------------------------------------------------------------------
      Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
      Part No: 1C0 909 605 F
      Component: 04 AIRBAG VW61 0202 0001
      Coding: 12340
      Shop #: WSC 00066
      VCID: 27533513C5F60B6

      No fault code found.

      -------------------------------------------------------------------------------
      Address 17: Instruments Labels: 1J0-920-xx5-17.lbl
      Part No: 1J5 920 926 H
      Component: KOMBI+WEGFAHRSP VDO V56
      Coding: 05230
      Shop #: WSC 00000
      VCID: 3469D25F042070E
      3VWSE69M54M145053 VWZ7Z0D9544986

      No fault code found.

      -------------------------------------------------------------------------------
      Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
      Part No: 6N0 909 901
      Component: Gateway K<->CAN 0001
      Coding: 00006
      Shop #: WSC 00066
      VCID: F0E19E4FB0B88CE

      No fault code found.

      -------------------------------------------------------------------------------
      Address 46: Central Conv. Labels: 1C0-959-799.lbl
      Part No: 1C0 959 799 C
      Component: 1H Komfortgerát HLO 0003
      Coding: 00258
      Shop #: WSC 00066
      VCID: 3773E55315569B6

      Subsystem 1 - Part No: 1C1959801A
      Component: 1H Tõrsteuer.FS KLO 0202

      Subsystem 2 - Part No: 1C1959802A
      Component: 1H Tõrsteuer.BF KLO 0202

      Subsystem 3 - Part No: 1C0959811A
      Component: 1H Tõrsteuer.HL KLO 0202

      Subsystem 4 - Part No: 1C0959812A
      Component: 1H Tõrsteuer.HR KLO 0202

      No fault code found.

      -------------------------------------------------------------------------------
      Address 56: Radio Labels: 3B7-035-1xx-56.lbl
      Part No: 3B7 035 180 G
      Component: RADIO 3CP 0007
      Coding: 00031
      Shop #: WSC 00066
      VCID: 2449221FB4C0E0E

      No fault code found.

      End ---------------------------------------------------------------------

      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Address 01: DTCs cleared
      --------------------------------------------------------------------------------
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      Address 03: DTCs cleared
      --------------------------------------------------------------------------------
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      Address 15: DTCs cleared
      --------------------------------------------------------------------------------
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      Address 17: DTCs cleared
      --------------------------------------------------------------------------------
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      Address 19: DTCs cleared
      --------------------------------------------------------------------------------
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      Address 46: DTCs cleared
      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Address 56: DTCs cleared

    7. 01-03-2012 09:35 PM #7
      :::::ALERT FORUM ACTION EMERGENCY MESSAGE:::::

      THIS POST MOVED/VACATED BY JACK TO PROTECT CONTENT FALLING INTO THE GAPING HOLE OF THE VORTEX

      IT SEEMS NO GOOD DEED GOES UNPUNISHED!

      http://www.youtube.com/watch?v=HaoySOGlZ_U

      Just email or PM John Acton@VMG as to why I have chosen to do this for a modification answer to these posts.....
      Ultimately this is his fault for how the account was handled.
      john@vortexmediagroup.com
      You could say I feel insulted and abused..........
      Last edited by Jack@European Parts; 07-30-2014 at 05:38 PM.

    8. 01-03-2012 11:03 PM #8
      I will check all connections tomorrow thanks for the feedback, I even tried capping of the N75 valve port leading to the waste gate to see if the waste gate was bad. Could it be the B1 S1 O2 sensor, how well do the aged test predict bad sensors?

      Thanks

    9. 01-04-2012 12:12 AM #9
      :::::ALERT FORUM ACTION EMERGENCY MESSAGE:::::

      THIS POST MOVED/VACATED BY JACK TO PROTECT CONTENT FALLING INTO THE GAPING HOLE OF THE VORTEX

      IT SEEMS NO GOOD DEED GOES UNPUNISHED!

      http://www.youtube.com/watch?v=HaoySOGlZ_U

      Just email or PM John Acton@VMG as to why I have chosen to do this for a modification answer to these posts.....
      Ultimately this is his fault for how the account was handled.
      john@vortexmediagroup.com
      You could say I feel insulted and abused..........
      Last edited by Jack@European Parts; 07-30-2014 at 05:38 PM.

    10. 01-08-2012 01:39 PM #10
      Im having a similar problem, no boost what so ever, and ive replaced maf,n75,n249,turbo, dv, spark plugs,coil packs,
      Have you figured out what the problem was?
      Im still getting 21hg vaccuum so im pretty sure i dont have a vac leak

    11. Banned bodya2004's Avatar
      Join Date
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      1998 Gti (sold) 2001 Gsr (sold) 1998 Jetta Gt (sold) 1990 Audi 80 2004.5 GLI (Sold) 2001 225ttg
      01-11-2012 12:29 AM #11
      does the car jurk or hesitate when about to go into boost?

    12. 01-11-2012 12:20 PM #12
      NO SOLUTIONS YET

      I just got back from vacation today and I will run a few VAG checks. I want to run a O2 sensor aging test to see if my B1 S1 is shot. But it doesn't run rough, it does hesitate to budge past "0" psi

    13. Forum Sponsor Santos@Ross-Tech.com's Avatar
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      2008 GTI
      01-11-2012 12:41 PM #13
      Is your car chipped? Some of the tuners will delete o2 sensors and prevent some of the tests from running.
      VCDS Diagnostic System For VW/AUDI/SEAT/Skoda/Bentley
      www.Ross-Tech.com

    14. 01-16-2012 07:37 PM #14
      OK, I FOUND MY SOLUTION

      Check your exhaust, your CAT might be clogged like mines was..
      CHECK THIS OUT


      No wonder car made 0psi.

      SORRY for the large a$$ pictures.. dont know how to resize

    15. 01-16-2012 09:16 PM #15
      :::::ALERT FORUM ACTION EMERGENCY MESSAGE:::::

      THIS POST MOVED/VACATED BY JACK TO PROTECT CONTENT FALLING INTO THE GAPING HOLE OF THE VORTEX

      IT SEEMS NO GOOD DEED GOES UNPUNISHED!

      http://www.youtube.com/watch?v=HaoySOGlZ_U

      Just email or PM John Acton@VMG as to why I have chosen to do this for a modification answer to these posts.....
      Ultimately this is his fault for how the account was handled.
      john@vortexmediagroup.com
      You could say I feel insulted and abused..........
      Last edited by Jack@European Parts; 07-30-2014 at 05:39 PM.

    16. Banned bodya2004's Avatar
      Join Date
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      Location
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      1998 Gti (sold) 2001 Gsr (sold) 1998 Jetta Gt (sold) 1990 Audi 80 2004.5 GLI (Sold) 2001 225ttg
      01-17-2012 12:36 PM #16
      what to look into changed maf no leaks boost/vacum

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