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    Thread: High idle at stops >= 1k

    1. Junior Member philly.c's Avatar
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      08-19-2011 01:17 PM #1
      So, I've been experiencing a higher than normal idle for the past few months when stopped at a light. So far, I have not been able to tie the issue to outside temp., not letting the car warm up, highway vs. city driving, or anything else. I have seen a few threads regarding this, but they are typically titled/labeled "car shakes/vibrates when stopped", which spawn into a what motor mounts do you have discussion (FYI, I have stock mounts). I want to figure out why it feels it needs to increase the idle randomly.

      Here's some more info:
      Normal idle engine speed is typically 600-700 rpm
      Stopped a light, after 10-15 seconds, rpm jumps to 1000-1200rpm
      Stays at higher rpm for 15-20 seconds, then goes back down, eventually to "normal" rpm
      When in high idle "mode", putting in park, R, N, D, S, M does not make a difference
      A/C on or off
      Outside temp temp 50-80 F (only been happening since May or so, so haven't tested in cold)
      Does not happen always, will happen at first long stop after startup, and also after 2+ hours of highway driving, or not at all
      If it happens once, I can usually bet it will happen again at the next stop
      Letting the car warmup fully seems to help, but it will still happen
      Not letting the car warmup seems to reproduce the issue more consistently, but not always

      Why this bothers me:
      Even worse MPGees (not statistically proven by me yet)
      Car does shake rather badly (motor mounts may help, or may make it worse), I'm sick of passengers asking what's wrong with my car
      Depending on rpm when proceeding from stop, car lurches worse than normal for DSG

      I've attempted to have the shop diagnose the issue, but so far is non-reproducible. I'm hoping I can have it happen again on my next visit, but don't want to pay for technician test-drives each appointment.

      Also, I'm stock except for flapper mod (vacuum tube removed and plugged w/ screw). Thanks in advance for any suggestions or advice.

    2. Member gottiR32's Avatar
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      08-19-2011 01:27 PM #2
      This is normal...
      .:R32 #1828 DBP H&R Sports H&R RSB other tid bits...
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    3. Junior Member philly.c's Avatar
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      08-19-2011 01:36 PM #3
      Quote Originally Posted by gottiR32 View Post
      This is normal...
      Hmm, any idea what the reason is for the car to do this? I never experienced this prior to 55-60k. Normal for MKV's, R32's, VR6 engine? Just curious really.

    4. Member Saabstory02's Avatar
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      08-19-2011 01:48 PM #4
      I'm at 90k miles and my car does not do that; I wouldn't call it normal; though perhaps my car is the abnormal one.

      Things to try: Vaccuum Leak; stuck or dirty throttle cable, throttle body, or Idler air control valve; cooling issue (may be the fan kicking on more often)
      -Jason
      '12 TDI 6M with "stuff"
      Underwraps Automotive

    5. Member Slave IV's Avatar
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      08-19-2011 02:05 PM #5
      I've been getting the exact same issue and it never happened before I got the Mechatronic recall done...first started a few days after the recall. I contacted them about it and they just said to bring the car in but I didn't feel like it, especially since it went away after a week or so...then it just happened again the other day. I have a feeling it may be a bad batch of gas.
      If your gas cap light comes on even if you think you tightened the cap, try pulling on the cap as you tighten it. Worked for me.
      Help us with suspension specs!
      Vag Evolution: MkI Rabbit -> MkII 16v GTI -> B5 S4/MkV .:R32

    6. 08-19-2011 02:09 PM #6
      mine did that too pretty much everyday, pretty annoying

    7. Junior Member philly.c's Avatar
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      08-19-2011 02:19 PM #7
      Ok, good food for thought on things to check, and I'm not the only one with the issue. I'm hoping I can get the tech to reproduce it for my next service. I'll post back if I have any success. More of an annoyance now, but since I sit in stop go traffic for my daily commute, it's really starting to get on my nerves.

    8. Senior Member abeR's Avatar
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      08-19-2011 02:27 PM #8
      I suggest you move closer to work. Traffic sucks. I ditched it and my commute is 9 mins of growling R32 at any speed I like.


      suck it traffic



      edit: now I have to go check this out.
      Last edited by abeR; 08-19-2011 at 02:30 PM.

    9. Member Saabstory02's Avatar
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      08-19-2011 02:35 PM #9
      OK, so apparently my car is the abnormal one...
      -Jason
      '12 TDI 6M with "stuff"
      Underwraps Automotive

    10. Junior Member philly.c's Avatar
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      08-19-2011 02:41 PM #10
      Quote Originally Posted by abeR View Post
      I suggest you move closer to work. Traffic sucks. I ditched it and my commute is 9 mins of growling R32 at any speed I like.


      suck it traffic



      edit: now I have to go check this out.
      Seattle traffic - unavoidable. Plus, I have 2 office locations, one in Seattle, the other on the eastside which is only accessible by 2 floating bridges. I get out enough on the weekends in the mountain and coastline roads to make up for the stupid drivers in the city during the week.

    11. Junior Member philly.c's Avatar
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      08-19-2011 02:44 PM #11
      Quote Originally Posted by Saabstory02 View Post
      OK, so apparently my car is the abnormal one...
      If you haven't had DSG problems and sub-frame clunking either, you probably got a lemon ;-)

    12. 08-19-2011 02:45 PM #12
      This started happening to me today, quite annoying. Turned off my car and turned it back on went right back to 600rpm.
      Candy White 2008 .:R32 #4804

    13. Member 10Ten's Avatar
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      heavy understeer and snap oversteer. PQ35 perfect.
      08-19-2011 03:30 PM #13
      people say it's normal? that surprised the crap out of me. it's NOT normal. high idle only when cold. the idle will jump a tad with the A/C on, but not over 1000.

    14. Member skaven-R32's Avatar
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      08-19-2011 03:44 PM #14
      Quote Originally Posted by Saabstory02 View Post
      OK, so apparently my car is the abnormal one...
      Mine doesn't do this either. Just over 32k here.

    15. Member ywang98's Avatar
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      08-19-2011 03:46 PM #15
      Close to 36K miles now, and my car does NOT do this, in hot days, cold days, with air conditioner on or off.

      Only fast idle during a cold start.

    16. Member Slave IV's Avatar
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      08-19-2011 03:50 PM #16
      Definitely not normal...I just want to know what the cause is. Hope the dealer figures it out when you go.

      Any other votes on it just being a bad batch of gas?
      If your gas cap light comes on even if you think you tightened the cap, try pulling on the cap as you tighten it. Worked for me.
      Help us with suspension specs!
      Vag Evolution: MkI Rabbit -> MkII 16v GTI -> B5 S4/MkV .:R32

    17. Junior Member philly.c's Avatar
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      08-19-2011 03:55 PM #17
      Quote Originally Posted by Slave IV View Post
      Definitely not normal...I just want to know what the cause is. Hope the dealer figures it out when you go.

      Any other votes on it just being a bad batch of gas?
      I fill up all over the place and different brands (always 92), so doubt it's this as it's been very consistent over the past 2 months. But, I will take note on each fill-up now.

      Asked around on other forums. The only commonality I can find is higher total mileage, maybe 50k+.

    18. Member Slave IV's Avatar
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      08-19-2011 04:00 PM #18
      My car only has ~20K

      Only other hint I have is that it happened on my car only after the mechatronic service was done. They also changed the oil, brake fluid, halldex service and dsg filter at the time though.
      If your gas cap light comes on even if you think you tightened the cap, try pulling on the cap as you tighten it. Worked for me.
      Help us with suspension specs!
      Vag Evolution: MkI Rabbit -> MkII 16v GTI -> B5 S4/MkV .:R32

    19. Junior Member philly.c's Avatar
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      08-19-2011 04:06 PM #19
      Quote Originally Posted by Slave IV View Post
      My car only has ~20K

      Only other hint I have is that it happened on my car only after the mechatronic service was done. They also changed the oil, brake fluid, halldex service and dsg filter at the time though.
      ok, scratch all that 50k+ talk. I personally had all that stuff done many miles ago and went for a long while without issue. One suggestion is it happens post fuel tank recall...hard to verify because I don't imagine there are many left out there that haven't had this done (much less owned by a vortex user). Back to square one.

    20. Member entirelyvw's Avatar
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      08-19-2011 04:16 PM #20
      I've experience this once. That is all. Almost to 39K miles in this insane Texas heat!
      Quote Originally Posted by abeR View Post
      I watched the part where you put it in over and over
      Dave

    21. Member Slave IV's Avatar
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      08-19-2011 04:18 PM #21
      MY SA did mention to check the air filter...Mine was dirty on one half so I flipped it around but it didn't make any difference and wouldn't explain why it only happens periodically.

      For me, it was for a few days after the service and then completely gone for a month or so. Then, it happened the other day a couple times but not since. I did just fill up that morning when it happened again but I'm still on the same tank now and it is not happening...
      If your gas cap light comes on even if you think you tightened the cap, try pulling on the cap as you tighten it. Worked for me.
      Help us with suspension specs!
      Vag Evolution: MkI Rabbit -> MkII 16v GTI -> B5 S4/MkV .:R32

    22. Senior Member abeR's Avatar
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      08-19-2011 04:23 PM #22
      do you hear your fans come on?

    23. Junior Member philly.c's Avatar
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      08-19-2011 04:26 PM #23
      Quote Originally Posted by Slave IV View Post
      MY SA did mention to check the air filter...Mine was dirty on one half so I flipped it around but it didn't make any difference and wouldn't explain why it only happens periodically.

      For me, it was for a few days after the service and then completely gone for a month or so. Then, it happened the other day a couple times but not since. I did just fill up that morning when it happened again but I'm still on the same tank now and it is not happening...
      One thing I'm going to try is to pop the gas cap off prior to morning startup, let it warmup and see if it happens. Then, on my commute home, do not pop the cap and see the results.

      For me, it seems to only happen after sitting for a few hours. On my way home from work it may happen, then during subsequent trips after it doesn't seem to happen.

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      08-19-2011 04:55 PM #24
      I have had the same problem since I got my R in January with 8,500 miles. Now have 14,500 and still have the same issue as others have described. I did have all the recalls done at the time of purchase. It's annoying.

    25. Member Slave IV's Avatar
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      08-19-2011 05:00 PM #25
      Yep, only happens if car is sitting outside under the sun for several hours...never in the morning when I leave my garage.

      Don't notice fan coming on but it always happens after I stop for a few seconds at a light...Will be normal right when I stop but then it seems like a ghost steps on the throttle to make the rpm's rise (no actual pedal movement).
      If your gas cap light comes on even if you think you tightened the cap, try pulling on the cap as you tighten it. Worked for me.
      Help us with suspension specs!
      Vag Evolution: MkI Rabbit -> MkII 16v GTI -> B5 S4/MkV .:R32

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