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  1. #1
    Neutral

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    engine intermittently cuts out

    A4 1999 1.8tqs B5.
    So engine starts and runs fine, accelerates in all gears right through the rev range without any misfires or odd sounds, only seems to happen when slowing down and clutch is depressed to change down into 4th, after driving in 5th for some distance with rev counter around 3000 - 4000, rev counter drops instantly to zero and battery light illuminates, just as if you turn off the ignition. Let the clutch back up and still in gear and the engine fires straight back into life obviously because of the momentum. Any other time the engine is fine and idles at 950 without any irregular movement showing on rev counter, any one else ever encounter this problem ? And what should I be looking for ? It does not always happen - but annoying when it does ! If I repeat the process it does not happen

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  3. #2
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Have you scanned for any faults ??
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  4. #3
    3rd Gear

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    Quote Originally Posted by Bradderz_1988 View Post
    Have you scanned for any faults ??
    As above but maybe it's your throttle body or maf you could try throttle body alignment with vcds.

  5. #4
    Broken Byzan's Avatar
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    ignition switch perhaps. Given rev needle drops instantly like engine has been shut off. I guess the crank sensor could be failing, that's the feed to the ecu for revs and then ecu sends feed to dash.. Hmmm VCDS FTMFW

  6. #5
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    Byzan .........can you tell me what FTMFW stands for - as I haven't got a clue !!

 

 

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