Fourtitude.com - Boost & air intake sensor Fault (G31/299) P0238 & P0098. Scirocco 1.4 TSI 160hp
Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    Fourtitude.com


    Results 1 to 6 of 6
    1. n00b
      Join Date
      May 8th, 2019
      Location
      Mauritius
      Posts
      7
      Cars
      2010/VW/Scirocco
      05-09-2019 03:07 PM #1
      Hello,

      I went to local shop to get a Diagnosis for my just bought Scirocco 1.4 TSI 160hp year 2010
      VCDS has found two Faults code on my engine. both on the Boost / air intake sensor (G31/299)

      I have changed the sensor. but the 2 faults are still there.
      The fault comes straight on contact, do not even need to start the engine.
      Anyone would have an idea what is going on ?

      I'll post the full diagnosis in next post for reference.
      Here is the part which I'm focusing right now :


      000568 - Manifold pressure / Boost Sensor (G31)
      P0238 - 000 - Signal too High - MIL ON

      Freeze Frame:
      Fault Status: 11100000
      Fault Priority: 0
      Fault Frequency: 1
      Reset counter: 255
      Time Indication: 0
      Date: 2047.15.31
      Time: 31:63:63

      Freeze Frame:
      RPM:0 /min
      Load:0.0%
      Speed: 255 km/h
      Temperature: 27.0°C
      Temperature: -40°C
      Absolute Pres.: 99.0 mbar
      Voltage: 7.747


      000152 - Intake Air Temperature Sensor 2 (G299)
      P0098 - 000 - Signal too low - MIL ON
      Freeze Frame:
      Fault Status: 11100000
      Fault Priority: 0
      Fault Frequency: 1
      Reset counter:255
      Mileage: 146362
      Time indication: 0
      Date: 2013.08.09
      Time: 08:59:45

      Freeze Frame:
      RPM: 1199 /min
      Load: 14.1%
      Speed: 0.0 km/h
      Temperature: 68.0°C
      Temperature: -40°C
      Absolute Pres.: 990.0 mbar
      Voltage 14.097
      Last edited by zakshaker; 05-09-2019 at 03:25 PM.

    2. Remove Advertisements

      Advertisements
       

    3. n00b
      Join Date
      May 8th, 2019
      Location
      Mauritius
      Posts
      7
      Cars
      2010/VW/Scirocco
      05-09-2019 03:23 PM #2


      You’ll notice quite few other faults . But I’d like to focus on this boost / air intake sensor first.
      My first though is wiring or connector plug problem. But before I go for further investigation on this side, I wanted to check if any of you would have an idea on this case

      Thanks


      Envoyé de mon iPhone en utilisant Tapatalk
      Last edited by zakshaker; 05-09-2019 at 03:35 PM.

    4. Member
      Join Date
      Feb 25th, 2010
      Location
      Wilkes-Barre, PA
      Posts
      830
      05-09-2019 08:53 PM #3
      Would have to say wiring or bad sensors.
      New sensors don't mean much to me. Depends on what brand and from where?
      Being you replaced them with no change I'd check each wire from sensors to ECU.
      If wiring checks good. Then sensor or ECU.
      Next step would be each wire from point to point. Load tested.

      Good Luck

    5. Remove Advertisements

      Advertisements
       

    6. n00b
      Join Date
      May 8th, 2019
      Location
      Mauritius
      Posts
      7
      Cars
      2010/VW/Scirocco
      05-10-2019 05:14 AM #4
      Thanks Stan for feedback . This was exactly my though .
      Plan is to try to find a car running same sensor without fault and try it on my car ( if I find someone willing to do so) then check wiring .

      There is one value which surprise me in the log : speed 255 km/h !!! There is no way this value is correct


      Envoyé de mon iPhone en utilisant Tapatalk
      Last edited by zakshaker; 05-10-2019 at 10:45 AM.

    7. n00b
      Join Date
      May 8th, 2019
      Location
      Mauritius
      Posts
      7
      Cars
      2010/VW/Scirocco
      05-17-2019 03:22 AM #5
      So for reference. in the end, it was just the bottom boost sensor which was disconnected (probably had no been reconnected when previous owner changed the water pump. few weeks before I bought the car).
      The top sensor (boost pressure and air intake temp) was just fine.

      Thanks

    8. Member
      Join Date
      Feb 25th, 2010
      Location
      Wilkes-Barre, PA
      Posts
      830
      05-17-2019 09:36 AM #6
      Good news!

      Good Luck

    Similar Threads

    1. Cold limp mode 5psi can the air intake sensor cause this?
      By jc dub in forum 1.8T Engine Forum
      Replies: 5
      Last Post: 12-27-2004, 12:56 PM
    2. Air Intake Sensor Mod???
      By MrElussive in forum 2.0 Liter Engine Forum
      Replies: 5
      Last Post: 02-17-2003, 02:04 PM
    3. air intake sensor mod
      By daschel in forum 2.8l 12v VR6 Engine Forum
      Replies: 7
      Last Post: 10-25-2002, 12:15 PM

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •