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  1. 05-24-2016 01:55 PM #1
    feeley80
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    Wierd, sporadic engine cut-out..

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    Hey all,
    Here's the rub: I have a pretty long drive to work in the mornings and I'm having a very specific issue.
    I have about 25min of 65-80mph driving, then I take an exit and when I come out of the corner of the exit and accelerate, my car stutters and feels like it's missing a spark or not getting fuel for 1 or 2 cylinders, usually around 3000 - 4000rpm (the heart of my powerband).
    The crazy thing is, I'm not getting a CEL!! The car only does it after I've been driving for a long-ish distance at high speed.
    WTF is going on.
    Side note: It's Stage 2, updated coils w/ iridium plugs, updated DV, updated HPFP and Intake camshaft.
    If I were a betting man, I'd say possibly an issue with the injectors, but I don't gamble.
    Lil help?
    Thanks!!!
    '07 A4 2.0T Quattro. Black on Black. Diverter Valves, Cam followers, oil leaks, carbon buildup... my girlfriend thinks it's hot that I can work on my own car. Thankfully Audi gives me plenty of opportunities to impress.
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  2. 05-24-2016 01:58 PM #2
    Audibot
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    You still may be misfiring. Have you had it scanned with VCDS yet?
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  3. 05-24-2016 02:00 PM #3
    feeley80
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    Quote Originally Posted by Audibot View Post
    You still may be misfiring. Have you had it scanned with VCDS yet?
    No, I haven't. Also, what's VCDS?
    '07 A4 2.0T Quattro. Black on Black. Diverter Valves, Cam followers, oil leaks, carbon buildup... my girlfriend thinks it's hot that I can work on my own car. Thankfully Audi gives me plenty of opportunities to impress.
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  4. 05-24-2016 02:15 PM #4
    Audibot
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    VAG-COM. VCDS= VAG-COM Diagnostics System. Read all your codes.
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  5. 05-25-2016 05:35 AM #5
    1killera4
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    Coil Packs.
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  6. 05-25-2016 08:55 AM #6
    feeley80
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    Quote Originally Posted by 1killera4 View Post
    Coil Packs.
    Wouldn't the coil packs give me a CEL?

    - - - Updated - - -

    Quote Originally Posted by Audibot View Post
    VAG-COM. VCDS= VAG-COM Diagnostics System. Read all your codes.
    Don't know if I'm ready to spend the money..
    Thanks for the suggestion, though.
    '07 A4 2.0T Quattro. Black on Black. Diverter Valves, Cam followers, oil leaks, carbon buildup... my girlfriend thinks it's hot that I can work on my own car. Thankfully Audi gives me plenty of opportunities to impress.
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  7. 05-25-2016 09:11 AM #7
    1killera4
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    Not always a CEL with intermittent coil pack cut out. At least on my car.
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  8. 05-25-2016 09:22 AM #8
    feeley80
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    Quote Originally Posted by 1killera4 View Post
    Not always a CEL with intermittent coil pack cut out. At least on my car.
    Ok, cool. Thanks!
    '07 A4 2.0T Quattro. Black on Black. Diverter Valves, Cam followers, oil leaks, carbon buildup... my girlfriend thinks it's hot that I can work on my own car. Thankfully Audi gives me plenty of opportunities to impress.
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  9. 05-27-2016 06:12 AM #9
    Okedokey
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    Hmm, what exact plugs are those? Are they a step cool enough to deal with the Stage 2 tune?
    A4 B7 2.0T | HPFP upgrade + FMIC | BSR Stage II + exhaust + HFC | 3.0TFSI Throt. Body | RS4 fuel contr., PRV + S3 inj., G247 + DW300c | GFB DV+| 034 RSB + all arms and mounts | S4 brakes | B12 Bilstein suspension + H&R springs | RNS-E + Polk Audio PA D5000.5 - 4 x DB6502 + DB840DVC sub + Pioneer 10" sub | LEDs throughout | 19" Audi 2015 RS4 rims

    My respray thread
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