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stuttering problem at more than half throttle

Central MT, WY, CO, ND, SD, NE, KS

stuttering problem at more than half throttle

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  #1  
Old 05-07-2008, 12:01 PM
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Join Date: May 2008
Posts: 2
Default stuttering problem at more than half throttle

I have an 2004 A4Q 6spd 1.8t, I have changed all four coil packs, service regularly, but still am having a problem with stuttering when under hard load and more than 3/4 throttle. Have no idea what could be causing this.
The air bag light comes on intermitently and then goes off, dont know why. any help would be greatly appreciated.

Thanks
Stephen
 
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  #2  
Old 05-13-2008, 01:41 PM
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Join Date: Mar 2008
Location: Denver
Posts: 308
Default RE: stuttering problem at more than half throttle

what shop have you been taking it to...
 
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  #3  
Old 05-13-2008, 01:41 PM
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Join Date: Mar 2008
Location: Denver
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Default RE: stuttering problem at more than half throttle

also what coil pack did you change
 
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  #4  
Old 05-13-2008, 02:23 PM
McGovs2.7TB5's Avatar
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Join Date: Jul 2007
Location: Denver, Colorado
Posts: 1,950
Default RE: stuttering problem at more than half throttle

Any CELs? If so is it flashing? Get your codes read at autozone (free) then post them in the B6 area otherwise people are just guessing as to whats wrong and thats really not alot of help. Sounds like a misfire but can't be sure w/o codes.
 
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  #5  
Old 05-13-2008, 03:09 PM
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Location: Denver
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Default RE: stuttering problem at more than half throttle

yea and if it is a misfire it could be one of the spark plugs that OEM had manufacturer flaw and got recalled
 
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  #6  
Old 05-27-2008, 11:53 AM
Join Date: Jun 2004
Posts: 3
Default RE: stuttering problem at more than half throttle

sorry its been awhile to get back, I've changed all the coil packs, bought them at Autosport Werks. Changed all the plugs. The code was for the small emission leak, the valve on the passenger side of the engine, changed that. The next thing is a Timing belt change, I guess I'll do it myself. Many years working on cars just never on one of these, if it was domestic I could tell you.
 
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  #7  
Old 11-12-2017, 01:54 AM
Join Date: Nov 2017
Posts: 1
Default

Hi All
I have the same stuttering issue on my 2.0T B8 with 147000 on clock. I have had spark plugs and coil packs replaced, and my regular mechanic has recommended I go to dealers because he could not find any issue. I am thinking Lamba sensor, or airflow sensors or vacuum are possible errors. Any other suggestions.
 
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  #8  
Old 05-30-2018, 10:59 AM
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Join Date: May 2004
Location: Northern NJ USA
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Originally Posted by Damian Bradley van Wyk View Post
Hi All
I have the same stuttering issue on my 2.0T B8 with 147000 on clock. I have had spark plugs and coil packs replaced, and my regular mechanic has recommended I go to dealers because he could not find any issue. I am thinking Lamba sensor, or airflow sensors or vacuum are possible errors. Any other suggestions.
Check for codes and post them.
 
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  #9  
Old 08-14-2018, 11:25 PM
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Join Date: Aug 2018
Posts: 2
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I have the same issue on a 2010 A6 3.0T. New coils & Plugs, New mass air flow sensor, new everything. Drives great then shakes like a 3 cylinder. Stop, shut it off for a minute or two, starts fine and runs great! little while later same scenario all over again. New gas filter, air filter All original Audi parts. What gives. 2000.00 invested thus far and have had it only two months.

My third audi but it may be my last.
 
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