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  1. 00553 Mass Air Flow Sensor (G70): Implausible Signal

    B5 Garage
    Hi all. Has anyone come across this fault code 00553 Mass Air Flow Sensor (G70): Implausible Signal (No dash warning light illuminated) I'm struggling with this one and could do with some advice.... My 2000 Vw Passat TDI (AFN) has lost all it's power, if i drive it with very small throttle...
  2. MAF Mass Air Flow sensor wire test

    Volkswagen Passat B5 Discussion
    My 2003 VW Passat 1.8T automatic is in limp mode so I've checked codes and it shows a P0102. I ran data on the MAF with code reader but it didn't register anything on code reader. I had issues with a bad relay so no power to MAF at one time so I want to rule out lack of current at wire harness...
  3. FS: 42DD high flow stainless steel CAT.

    Parts For Sale
    for sale is a part i had planned to put onto my car, but.... well... i sold it (the car). LOL it's a 42 Draft Designs high flow OEM fitment catalytic converter. if you go to stage 2, they require you to typically have a high flow cat, or a test pipe, and this will be the best solution as it is...
  4. Heater Issue.. No flow to heater core.

    Volkswagen Passat B5 Discussion
    Okay my 2003 V6 has developed a weak heat problem. It is manual controlled so no climatrol to deal with. I read many posts and used my digital non contact thermometer to check the heater core pipes. They were colder than should be. I did a heater core flush today, with the Blue Seal heavy duty...
  5. VW Passat B5 possible mass air flow sensor issues

    Volkswagen Passat B5 Discussion
    VW Passat B5 engine does not run smooth Hello everyone. Been having issues with my passat, it does not run well, engine is rough and not smooth. Most visible at idle as it almost shakes. I checked the spark plugs but it seems all cylinders are working just fine. When scanning for codes I get...
  6. '02 1.8t Do I need a high flow catalytic converter?

    Volkswagen Passat B5 Discussion
    My aunts bf who is a pretty good mechanic says I need a high flow cat. I am sure he will be the one installing it so if I show up with one that isn't high flow I am sure I will hear about it. I searched all over the net yesterday. And only thing I found was that a high flow cat could cause an...
  7. '02 1.8t Do I need a high flow catalytic converter?

    New Member Introductions
    Hello, New to the site and thought maybe I would see if I get a response in here on my 1st post. My aunts bf who is a pretty good mechanic says I need a high flow cat. I searched all over the net yesterday. And only thing I found was that a high flow cat could cause an engine code to trip. I...
  8. Mass air flow sensor (2008 VW passat)

    Volkswagen Passat B6 Discussion
    Hi folks, For the life of me I can't find where the MAF is located for 2008 VW passat turbo. Anyone can point me to the right direction or any diagram would be greatly appreciated. Thanks.
  9. Mass Air Flow Sensor is at it again

    Volkswagen Passat B5 Discussion
    Hello All. Just a reminder to check your mass air flow sensor when your car is running rough. She is running smooth as a kitten now. Hmmm. Anybody need a passat wagon v6 standard? pm me
  10. V71 Fault, Air Flow Flap Positioning Motor replacement, No dash removal!

    B5 Garage
    I have been getting the V71 error in Vag-com and poor control of Recirc function ever since I bought my 2003 Passat GLX 4-Motion wagon, 4 years ago. Finally decided to take care of this. There seem to be lots of people with this problem, but many don't fix it because of cost or difficulty. I...
  11. Best and Cheapest Mass Air Flow Sensor

    Volkswagen Passat B5 Discussion
    I need a new one and just pain advance auto parts 185.10. It's a BWD. Can you guys recommend something cheaper but if the same quality?
  12. 16825 - Incorrect Flow P0441

    Volkswagen Passat B5 Discussion
    VCDS-Lite Version: Release 1.2 Wednesday, 15 April 2015, 17:03:28. Control Module Part Number: 4B0 906 018 Q Component and/or Version: 1.8L R4/5VT G 0008 Software Coding: 07051 Work Shop Code: WSC 25426 VCID: 2F1190BFFE05 1 Fault Found: 16825...
  13. FS High flow ko3/ko4 Kinetic exhaust manifold

    Parts For Sale
    SOLD, SOLD, SOLD :) I have for sale an used high flow Kinetic exhaust manifold. This manifold will work with the stock k03 or k04 turbo. It also comes with brand new hardware for installation. Asking $200.00 shipped for everything pictured. I can also be reached at [email protected]
  14. Secondary Air Incorrect Flow: The Saga

    Volkswagen Passat B5 Discussion
    I've got a 2000 1.8T and the 2ry air system has been giving me headache after headache. I purged the system of any carbon buildups by pouring in cleaner and letting it sit overnight--air flow improved a little but is still desperately low: less than 1 gal per second when the target is 2 gal/sec...
  15. mass air flow problem

    Volkswagen Passat B5 Discussion
    Hi guys got a problem with eratic tick over and when I unplug the maf sensor car runs fine so I ordered a new one from my local dealer and put it on and its worse than before but this time the engine just cuts out and ive noticed in the end of the air intake pipe that goes on the end of the...
  16. Recirculate mode air flow issue

    Volkswagen Passat B5 Discussion
    I'm having problems with my recirculate mode feature. When I have recirculate off to use outside air, I get strong air flow from the vents. However, when I turn recirculate on, the air flow drops to barely anything. I ran the climatromic diagnostics and it returned 4fa for recirculation flap...
  17. Need help on check valve flow direction.

    B5 Garage
    I think I may have made a rookie mistake. I changed my PCV and Vac lines this week and found a couple small issues (thanks to PW for great write ups and DIY's!). Here is the problem: The vac line between the intake manifold and the combi valve in my 1.8t AWM has a check valve. I replaced...
  18. Looking for High Flow Cats - trying to not set off CEL

    Volkswagen Passat B5 Discussion
    I am on the lookout for some high flow cats. To be more exact the left and right lower cats. I am not sure if all converters have O2 sensors but if I am gonna replace any with performance cats, I would like to preserve my NO CEL spree. Anybody with recommendations or experience in this...
  19. What is the exact coolant flow path?

    B5 Garage
    Like many others, I'm singing the no-heat blues... However, I wonder if there's something else at play here than the usual suspects. Here's what I know: -My coolant reservoir isn't dirty -My coolant isn't dirty, is the proper G12, and was fully flushed about a year ago -About a year ago my...
  20. Need help with Check Valve Flow Direction

    Volkswagen Passat B5 Discussion
    2002 Passat 1.8T AWM B5.5 158K. I recently replaced this check valve shown in the red box with the arrows marked on the valve pointing in the direction of the red arrow in the pic. Overtime I see some blowback oily residue around the area shown in green box in the second pic so I am wondering...