1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

S3 choking/hesitating

S4 Muzza Jan 6, 2013

  1. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
    My S3 has developed a stuttering when accelerating and its recently got worse. It only seems to affect 3rd-6th gear, not first or second. It almost feels like the car is choking or something. Each 'choke' only lasts a split second but it will often 'choke' about half a dozen times in a row, depending on how hard i'm accelerating. Seems to happen between 3 & 40000rpm, but if i accelerate slowly i can get up to speed without it happening at all. The car idles normally but i feel its running a bit rough in general.

    I cant have the car scanned until next week, so dont have any codes as of yet. Anyone have any ideas? My initial thoughts were MAF or coilpacks??

    Thanks
     
  2. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
    just had it out for a spirited run with the maf disconnected and its running much smoother, but still not perfect and the choking persists. ideas?
     
  3. Vex182

    Vex182 Guess what I drive...

    1,035
    79
    48
    Replace the MAF with a friend if possible. Could be MAF or a slight misfire, have you checked the plugs?
     
  4. gen.heinz guderian

    gen.heinz guderian Well-Known Member

    1,346
    126
    63
    Sounds like coilpacks to me.
     
  5. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
    cheers for the reply, will check the plugs tomorrow and probably get a new set ordered just to eliminate that as the cause of the problem. fingers crossed that'll sort it, i can handle £30 lol
     
  6. Westy

    Westy Well-Known Member

    17,443
    1,103
    113
    I'd guess at coil packs or the coil pack wiring. A lot more people are reporting the coil pack wiring at the moment as these cars are hitting an age where the wiring is becoming an issue.
     
  7. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
    can anyone confirm that PFR6Q is the correct part no. for the NGK plugs? Not sure if i need something differnet with the APY having bolt downs??? thanks again
     
  8. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
  9. MURRAYS444

    MURRAYS444 Member

    790
    38
    16
    I have those ones they should be fine, hopefully this should cure your car :meeting:
     
  10. S4 Muzza

    S4 Muzza oww! my giant blue head!

    349
    29
    28
    Quick follow up.

    After trying to remove the plugs a few days ago with no joy, i tried again tonight with a cool engine and some more leverage. Had them out no problem. And the icing on the cake is that (for now anyway) its cured my hesitation at 3000rpm :) and the car in general is runing much sweeter. Cheers everyone for the input.

    For reference the NGK spark plugs used were PFR6Q 6458
     
  11. MURRAYS444

    MURRAYS444 Member

    790
    38
    16
    That's good to here a cheap fix was the problem with your car the plugs on my girlfriends car were a nightmare to remove thought they were welded on :(
     

Share This Page