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  1. 2004 1.8T 4 motion CELs

    Volkswagen Passat B5 Discussion
    Several weeks ago I had a CEL with the following codes. 16804 PO420-002 Catalyst System Bank1 16840 PO456-001 very small leak detected intermittent 16684 PO300-008 Random/Multiple Cylinder Misfire Detected Intermittent 16688 PO304-008 Cylinder4 Misfire detected Intermittent I re-did the...
  2. New(used) ECU, new CELs

    Volkswagen Passat B5 Discussion
    Hi, I've been having issues with my 99 aeb for about a year now. Once it gets about 70 degrees out I had misfires/bogging down/ erratice idle. The problem was that there was NO CELs. It could usually be fixed by turning the car off and starting it right up again. I recently bought a used ECU...
  3. CELs Related?? Need Help/Advise

    B5 Garage
    So I have had my CEL on for awhile now. The other day my wife went to take the car out and the CEL started blinking and it was missing pretty bad. When I got back in town I started it up again about a week later and the same thing, I let it run for a min and it smoothed out...CEL stopped...
  4. Misfire CELs out of the blue

    B5 Garage
    So the new wagon has been running fabulously in the, what 10 days I've had it. Today, in normal sedate driving I get a flashing CEL, and excessive stumbling. limp home, hook the vag-com and see both a general misfire and a misfire on cyl 2. Swap coil packs around, then within the next few...
  5. Misfires, CELs, & more probs..

    B5 Garage
    Ok, for starts I have an 01 v6 2.8 b5.5, stick shift, 93,000 miles... for awhile now my car has been running rough. when accelerating it would sputter (dont know how else to explain) as if it was almost going to die. i had a family member with a universal check engine cable, did the test and...
  6. gota love them CELs!

    Volkswagen Passat B5 Discussion
    so i got a CEL the other day & i have a B5 KO4 and some other small things. i have not gotten my ECU rechipped/flashed for the KO4 but thats next weekend, that shouldnt have anything to do with the CEL. i took it to autozone bc run codes for free! plus no VAGcom for me. Here are the codes...
  7. what are these two CELs?

    Volkswagen Passat B5 Discussion
    p1297- unknown error elaboration - intermittent p1602 -unknown error elaboration - intermittent no check engine light, they were just in the memory...
  8. misfires, blinking CELs, and no throttle response

    Volkswagen Passat B5 Discussion
    misfires, blinking CELs, and no throttle response - UPDATE Well, not all at once, but all that has happened in the last two days along with my brake lights getting stuck on. That was an easy one though. 2004 1.8T tip, 44,7XX miles Thursday evening - Leave work, driving down the street. As I...
  9. Flickering CELs go DIM/Beeping Noise/Engine shutoff by itself

    Volkswagen Passat B5 Discussion
    Ok I've read what feels like a billion threads on issues like this, and have it pretty much broken down as either an ignition switch going out or the alternator. OR something completly ridiculous!! I have a 98 Passat 1.8T with 112k miles. When I get into my car and turn the key all the way...
  10. 5 cels in one day someone help

    Volkswagen Passat B5 Discussion
    okay my car has a to4 on it it has been driving great untill today when i left work and was getting on the highway the boost surged then i got all 5 cels boost pressure drop between turbo and intake n75 open circut mass air flow low voltage misfire cyl 2 throttle addaption not started can...
  11. A pair of CELs yesterday...

    B5 Garage
    So I don't often see CELs on my car. I've only ever seen two other untill yesterday. After popping the VAG-COM onto the car I came up with two throw codes. 16855 - Vehicle speed sensor, implausible signal... intermittent & 17544 - Long term fuel trim add. fuel (bank 1) system too lean...
  12. Power issue and CELs

    Volkswagen Passat B5 Discussion
    I have a 2003 Passat 1.8T. I purchased it new and left it stock for about 11 months, then got the Wetterauer chip and EVO DV and have driven it chipped for about 11 more months. Since it's been chipped I've noticed a couple things: 1. It has a noticable surge of power. Instead of a metered...
  13. Random Cat... anyone getting CELs?

    Volkswagen Passat B5 Discussion
    im looking at getting one pretty soon, but i dont want to deal with it if anyone is getting codes thrown from it. After doing a little reading on it, here are the questions i have left: What engine code do you have? Does your Random throw codes? Any problems passing emission? What vendor did...
  14. Need help - getting CELs for Cat effinency low

    Volkswagen Passat B5 Discussion
    I have a an AUG 1.8T with a high flow CAT and APR stage 3 turbo and programing. Lately I have been getting CELs every couple of days. The ECU shows codes 16804 which is Cat efficiency low. The MAF is relatively new. Any suggestions on how to proceed? Should I replace my O2 sensor? If so, which...
  15. V6,No CELs, but VAG-COM shows Cyl misfire/O2 sensor prob

    Volkswagen Passat B5 Discussion
    Uploaded lates version of VAG-Com today and plugged up my 2000 V6 to it for some experimentation. No DTCs. Measuring block 014 showed cylinder 1 misfiring with a value of 1 to 8 as length of time elapsed. Pulled into my garage and removed spark plug #1 and it looked fine. Reinstalled...
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