Results 1 to 5 of 5

Thread: 16201 and car dies (sometimes) at idle.

  1. #1
    Verified VCDS-Lite User
    Join Date
    Apr 2015
    Location
    USA
    Posts
    2
    Post Thanks / Like

    16201 and car dies (sometimes) at idle.

    1998 A4 Avant 2.8 AHA 5-speed 218,000 mi.


    Two weeks ago the car would die (only when hot) when going to an idle. This was infrequent and only would happen once or twice in a day. Seemed just like a typical vacuum leak and I would get a 16839 (P0455 EVAP Gross leak).

    Could not find any visible leaks, worked on the gas cap and N80 .... problem went away for a few days but now has come back as either a 16487 MAF too high or too low as shown this attached scan as a 16201 MAF too low. I will clean and if that doesn't work replace the MAF as my next step. But before I do that (now that I have VCDS-Lite working) I want to log the MAF Measuring blocks before I do anything.

    So here's my question ..... Just where do I find information on what my MAF readings should be and under what conditions do you do the test?
    I see that measuring block 02 shows MAF readings 3.0 at idle, what other blocks should I be looking at?

    After clearing codes yesterday I took a 3.5 hour trip over the mountains to Redding and back. The car ran flawlessly on the trip except for when stopped in a construction zone for about 5 min it started to die at an idle, I kept the revs up till we got rolling and drove another another 4-5 hrs with out a problem. Below is the results of my autoscan after that trip.

    Thanks in advance for any information
    Jim

    Code:
    VCDS-Lite Version: Release 1.2
    Wednesday, 29 April 2015, 10:50:03:43507
    
    
    Chassis Type: 8D - Audi A4 B5
    Scan: 01,02,03,08,15,16,17,25,35,37,45,55,56,57,67,75,76 ,77
    
    -------------------------------------------------------------------------------
    Address 01: Engine Labels: 078-907-551-ACK.LBL
    Controller: 4D0 907 551 AH
    Component: 2.8L V6/5V MOTR HS D02
    Coding: 06201
    Shop #: WSC 26118
    VCID: 6CABEE400F93
    1 Fault Found:
    16486 - Mass Air Flow Sensor (G70): Signal too Low
    P0102 - 35-10 - - - Intermittent
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL
    Controller: 8E0 614 111 M
    Component: ABS/EDS 5.3 QUATTRO D41
    Coding: 0273004134
    Shop #: BB 24302
    VCID: 2823D250DBEB
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC Labels: 8L0-820-043-2D.LBL
    Controller: 8L0 820 043 D
    Component: A4 KLIMAVOLLAUTOMAT_D75
    Coding: 04162
    Shop #: WSC 06325
    VCID: 2925D754C0E1
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags Labels: 8D0-959-655-AI7.LBL
    Controller: 8D0 959 655 M
    Component: Airbag 7 Audi 0502
    Coding: 00106
    Shop #: WSC 06325
    VCID: 40F36AF0539B
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 8D0-919-xxx-17.LBL
    Controller: 8D0 919 930 L
    Component: B5-KOMBIINSTR. VDO D03
    Coding: 06262
    Shop #: WSC 00000
    VCID: 3701012C0655
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks Labels: 8D0-862-257.LBL
    Controller: 8L0 862 257 N
    Component: CV-Pump D06
    Coding: 16140
    Shop #: WSC 06325
    VCID: 40F36AF0539B
    4 Faults Found:
    01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
    35-00 - -
    01371 - Alarm triggered by Door Contact Switch; Driver's Side
    35-00 - -
    01370 - Alarm triggered by Interior Monitoring
    35-00 - -
    00957 - Key 3
    09-00 - Adaptation Limit Surpassed
    
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor Labels: 4B0-951-173.LBL
    Controller: 4B0 951 173
    Component: Innenraumueberw. D03
    Coding: 00102
    Shop #: WSC 06325
    VCID: E0B30A70735B
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio Labels: 8D0-035-1xx-56.LBL
    Controller: 4B0 035 186 A
    Component: Radio D02
    Coding: 00117
    Shop #: WSC 06325
    VCID: 1E4FF48889AF
    No fault code found.
    
    End --------------------------------------------------------------------------------------------------
    Last edited by Uwe; 04-30-2015 at 04:59 PM. Reason: CODE tags

  2. #2
    Benevolent Dictator Uwe's Avatar
    Join Date
    Jan 2014
    Location
    Earth
    Posts
    27,038
    Post Thanks / Like
    Blog Entries
    1
    MAF readings around 3.0 g/s at idle is reasonable. You're looking at an intermittent problem here; the ECU knows it too. Logging the MAF values may show you that it goes "offline" when it does, but that won't answer the question whether it's the MAF itself or a wiring/connection issue that's causing this. What you might want to do is to watch the MAF values while wiggling the wires at the MAF sensor with the engine at idle. Also check grounds and inspect the harness connector at the ECU.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  3. #3
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    18,639
    Post Thanks / Like
    Intake boot installed incorrect or torn underside due to worn motor mounts.

    Check vent hose from VC to VC and back to plastic valve at TB because this is common on AHA and ATQ.

    There is also a firmware update for this module.

    Controller: 4D0 907 551 AH
    Component: 2.8L V6/5V MOTR HS D02 <<<<<<<<<
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  4. #4
    Verified VCDS-Lite User
    Join Date
    Apr 2015
    Location
    USA
    Posts
    2
    Post Thanks / Like
    Quote Originally Posted by Jack@European_Parts View Post
    Intake boot installed incorrect or torn underside due to worn motor mounts.

    Check vent hose from VC to VC and back to plastic valve at TB because this is common on AHA and ATQ.

    There is also a firmware update for this module.

    Controller: 4D0 907 551 AH
    Component: 2.8L V6/5V MOTR HS D02 <<<<<<<<<
    Intake boot is installed correctly and no tears, motor mounts were leaking and replaced.

    Replaced the vent hoses and valve a long time ago, they were cracked rotted and broken from the heat retained by those stupid engine covers which also rot the rubber vacuum hoses. Those covers are right where they should be ....in a box in the attic.

    I'm interested in more information about the firmware update (how is it done etc).
    Thanks, Jim

  5. #5
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
    Location
    1001 State Route 17K Montgomery New York 12549
    Posts
    18,639
    Post Thanks / Like
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

Posting Permissions

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