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Mis-fire

Discussion in 'A3/S3/Sportback (8P Chassis)' started by dc240969, Oct 29, 2008.

  1. dc240969

    dc240969 Member
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    l was round at my local mod center and we were talking of this and that and then got on to the subject of mis-fires. l told the owner that l had recently had my S3 up to Audi as the ecu light was on , and had been once before. First time Audi reset it and said it was a fueling problem, second time the found that it was misfiring on cylinder 3 and changed the coil. Today l was taking my motor up to them for some work on the rear bumper that l noticed after l got the motor. l was in 3rd or 4th and must have red lined it. Oh it didnt like that, splutter and warning lights flashing. Luckily the ecu light went out and l got to Audi, where l picked up a TTc Tdi for the day.
    Now after speaking to the garage owner he has told me that he feels we have a problem with the injectors. My motors only done 6500 miles and had ecu error twice and today spat the dummy out.
    Are we looking at a mass recall/rework in the near future?:sos:
     
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  3. block

    block Member

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    This sounds exactly like the problem i was having before i got my injectors changed see here....

    http://www.audi-sport.net/vb/showthread.php?t=60131&highlight=poorly

    Actually the first thing i did which really improved it was put some stp fuel injector cleaner through it, used in a full tank once i got towards the bottom of the tank my misfire had all but gone.
     
  4. jamiekip

    jamiekip Guest

    Seems quite a few people get this, especially after re-maps.
    Not had a problem with mine, but all appear to be getting done under warranty
     
  5. dc240969

    dc240969 Member
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    So what have you had done Jamie?
     
  6. jamiekip

    jamiekip Guest

    GIAC Hammer
    BMC Panel Filter
    Carbonio airbox

    Had all of this on for a while now, over 5000 miles and the car has not missed a beat.
    At the Regal rolling road day magnus911 had an issue at the very top of the rev range. he's run some injector cleaner and I've not heard anything since - maybe that cured it.
    What interesting is, you really don't need to drive the car up to the redline. Every plot i've seen shows torque reducing towards the redline so you're better changing earlier. My point is, as the misfire happens at the very top of the rev band, lot's would never even trigger it becuase they aren't driving to the redline.

    What's special about your GIAC then???
     
  7. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Seems to be like a coilpack. Had this in my 2.0T A3. After reading all the reviews / comments of being remapped over the last 6 months has kond of changed my mind.

    Over 50% of remapped cars seems to have a small niggle at some point. Maybe a revised fuel pump / coilpack / spark plug / injector I don't know.

    Who has the definitive answer?

    David
     
  8. S3 Big Andy

    S3 Big Andy Stealth Beast Baby Yay

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    Basingstoke Audi did mine, if its a mis fire and over fuelling its more than likely the injectors!! tell them I had mine done and where get them to call and ask for Richard he dealt with it
     
  9. dc240969

    dc240969 Member
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    Fair dues. Its only ever happened in the red. l only hit it cause l had the music up high, l normally change by ear., and no thats the sound not the action. :superman:
     
  10. Staz

    Staz is a retronaut
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    I have had no such problems so far after 7800 miles, 7500 of them with Bluefin. A fair bit of my mileage has been 120+ autobahn too.

    I did find a misfire fault logged a while back though at 121mph. Nothing since then.
     
  11. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Staz, Off topic.

    I am thinking of going Belgium / Germany in April For Bank Holiday Weekend. Can you recommend any nice places to go in Germany etc / nice roads.

    Was going to go to the alps but will go later on in the year when the passes are clear and can tag along with the as.net bunch.

    David
     
  12. JamS3

    JamS3 Active Member

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    Dave

    Just been to Bruges in Belgium weekend gone, lovely place!

    Get the Ferry from Hull and its a overnight job and off in the morning to explore.

    Only 44 quid return at the min also with P + O!!
     
  13. JamS3

    JamS3 Active Member

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    Seems a bit more than 50% to me reading all the posts on here, and seems all to be centered around Revo and GIAC.

    I was a dead cert on getting mine remapped but think there are some major issues at the min and dont fancy having a 32k misfiring car which may have other major issues arise if remapped. Think I'll wait a bit and see what happens as I get in a right one when my car is not 100% all the time!

    There are too many cars on here now with those remaps and misfiring issues, it can not be coinsidence either!!
     
  14. dc240969

    dc240969 Member
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    It would be good to hear if this is just isolated to remapped cars.
     
  15. jamiekip

    jamiekip Guest

    It's not... my mate has a boggo standard S3 that he took delivery of from new and has had 2 injectors done due to misfires.
    Was chatting to him earlier today and he mentioned it in passing....
     
  16. warren_S5

    warren_S5 Moderator
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    I have had some issues, but changed from OE plugs o NGK Iridiums and mostly the car seems OK. I have some days where it fails to start first time, but when I took the knackered OE plugs out at 11k miles the electrodes were pitted and very coked up.

    There have been some similar issues with the 240PS Leon Cupra's (seen on SEATCUPRA.net), so I think there is a bigger issue with the fuelling that VAG group let on to. Some OE cars have been having issues below 6k miles.

    What worries me more is trying to locate the root cause of the issue sems to be like finding an atom lost in the universe.
     
  17. Iggu

    Iggu Active Member

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    I'm not disagreeing with you - but just to offer the other side I've done 17000 miles in my S3, 8000 with Bluefin, 3000 with Revo and 6000 as standard: not a single issue at all. I've hammered it on autobahns and numerous trackdays too.
    I'm not saying you're wrong but I'm not convinced the remapping is to blame.
     
  18. dc240969

    dc240969 Member
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    But. If a stock motor is doing the same then thats that idea out the window.:Flush:

    Sorry. Misread. Iggu didnt read the NOT.
     
  19. jamiekip

    jamiekip Guest

    I'm with you 100% Iggu - I don't think the remaps are to blame at all, it is exagerrating an issue that is already there IMHO.
    Like Iggu said, I've covered 19k miles, 5k or so on GIAC, have done a couple of track days, long trips to Europe, etc, etc and my car has never missed a beat.
     
  20. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Jam I am waiting for my S3 hehehe
    Am looking to fo Easter time, also a run on the autobahns but where to?
     
  21. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    But if there are some problems, why would we as the owners wan't to take the risk. My last S3 never missed a beat. Started every time and I hammered every now and again.
     
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  23. jamiekip

    jamiekip Guest

    I guess that's the call people need to make Dave.
    If you want more power you need a map, if the map highlights the issue, you need to get it sorted under warranty.
    It's a choice and if you're of the "if it ain't broke then don't mess with it" camp, you'll leave your car as standard. BUT if you do want the extra power the map gives, you will.
     
  24. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    True. It's just annoying because I would love to remap my car.
    However the issues that are arising makes it seem like problems are more common than on the old 1.8T which was tuned beyond belief in many cases.
    Or is it something the remappers are overseeing?
     
  25. jamiekip

    jamiekip Guest

    I hear you Dave, really I do.
    BUT - I believe the issue is there whether you ahve the amp or not - the map simply amplifies it to a level you notice.
    You could try a couple of things - get some with vagcom to run some simple diagnostics on the car, or speak to your dealer and say you've read about several issues relating to injectors on 2.0TFSI cars. What is the issue? And has this issue been resolved with the enhancements to the engine in the facelift S3?

    My perspective (and I guess its easier to say as I've not had the issue!), is that if you don't have a map and the issue is there then it may be a problem outside of warranty - not a problem if you don't keep the car that long, but you've missed out on a map.

    I personally wouldn't miss out on the greater driver enjoyment the map offer on a 'what if' approach to it.
     
  26. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Exactly. I probably will get re-mapped. Its just a concern. I have seen less problems with Revo. However less people have gone with revo. The Giac is great I can see that but maybe disagreess with a parameter is some cars maybe? I don't know, I can only guess and make a fool of myself
     
  27. jamiekip

    jamiekip Guest

    If you're that concerned mate, when you get your car, go straight to a reputable tuner near you, with a RR and discuss this with them. They can prob's run some diagnostics and checks that will tell you if you're one of the unlucky few.
    Hopefully, by the time you get your new one, the enhancements to the new S3 engine will be well documented and you'll feel more confident.

    It's worth noting, when one of the guys on the Regal RR day had the issue exposed by a map it was only in the very last part of the rev range - if he didn't drive it to the redline he didn't know the issue was there.
     
  28. Staz

    Staz is a retronaut
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    There's only one place in Germany you should be planning to go..... the 'Ring!! :jump:

    I haven't done a lot of travelling down south really so I don't really have anything to recommend. If you want proper driving roads you need to head more to the alps way. Further up in Germany and Belgium it's just like the UK. Motorways and towns with normal town roads.
     
  29. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Ye I thought so. Is the alps a good place to head for in April. ( Not to snowy? )

    David
     
  30. Carl.S

    Carl.S Member

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    the misfire issues people are getting aren't software related in the slightest!

    i think you'll find in MY2008+ suffers from a misfire issue related to a change in DP setup where if you put more than 1 bar of boost in at 6k+ they'll start to break up

    on the older cars there have been some issues with injectors failing, none of this has anything to do with software!
     
  31. Carl.S

    Carl.S Member

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    oh and we have found MY2008+ with a full TBE and software aren't suffering with any misfires and are silly quick (especially in this waether) :)
     
  32. Staz

    Staz is a retronaut
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    Not been to the alps apart from through Austria and Italy this year, but that was mostly motorway. Apart from when there was a massive traffic jam for about 100 miles so we found a route through the hills. It was an awesome drive!
     
  33. dc240969

    dc240969 Member
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    No need to go way over there. Drive up to Glen Shee and over to the west coast, if the roads quiet its a blast. Plan your fill up points thou.
     
  34. jamiekip

    jamiekip Guest

    Hey Carl - thanks for that - useful info. :salute:

    So are you saying MY2007 - all 56 & 07 cars are exept from this issue with the DP, but will potantially expereince the injector issue
    And MY2008 - all 57 and 08 cars up to the facelift have DP issues

    Do you now what changes have happend to the lump in the facelift car by any chance?
     
  35. Iggu

    Iggu Active Member

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    I can vouch for this !!
     
  36. DemianM

    DemianM RWD sucks!

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    I also had problems with my 08 S3 (mind it was produced during sep 2007). I tried 3 different softwares but I kept on having misfires issues. Maybe I have an injector issue, who knows.....but I also know all the others S3 who tried remapping in our country got the same problem (misfires by redline) and I always thought it was related to fuel quality, not injectors issues.
     
  37. Carl.S

    Carl.S Member

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    haven't even seen a facelift yet......we'll see whe we get one :)
     
  38. Carl.S

    Carl.S Member

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    get a full TBE and our stage2, no misfire and awsome power :)
     
  39. dc240969

    dc240969 Member
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    Are you selling ? If so thats quite a claim you might have to back up.:eiertritt:
     
  40. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Sorry whats a DP?

    Someone tell me where to go In Germany eheheheheh.
    Switzerland still a possibility in April?

    David
     
  41. JamS3

    JamS3 Active Member

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    Down Pipe?

    I'm having a slow afternoon too...
     
  42. DaveS3Turbo

    DaveS3Turbo Sepang Blue S3

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    Ye could be. Jam hows your s3?
     

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