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  1. #1
    Reverse Gear

    Join Date
    Nov 2012

    Strange Idle problem

    Hi all

    I have recently bought a 2003 A4 Avant Quattro 1.8t and today whist being stuck in slow moving traffic i noticed it was idling a bit fast (1100 rpm).
    Next it climbed up to 2000 rpm then dropped back down to 1000 rpm and stopped there for a few seconds then the process started again.

    Can anyone shed any light on what could be causing this to happen please??
    I know the car needs a new n75 valve as it has been backing off the boost for weeks and not sure if this might have something to do with the revving problem.

    Many thanks in advance

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  3. #2
    marktdisport's Avatar
    5th Gear

    Join Date
    Jul 2011
    Get it scanned cts can cause revs to stick etc and may also cause hesitation, may be somethink cheap and simple
    A4 TDI 130 SPORT..
    now sold but still in the family, gone back in time to the cupra R again..

  4. #3
    Pabs's Avatar
    3rd Gear

    Join Date
    Jun 2010
    Probably your idle control valve, it's only a couple of quid from audi, 10 min job to change, there is a thread on here about it.
    A4 1.8T 190 S-Line, Stage 2 Shark Performance Map 230 BHP, Pipercross Panel Filter, Forge 007 DV, Blue Flame Performance Exhaust + High Flow Sports Cat, 8k HID Lights, 8k HID Fog Lights, LED Sidelights, LED Number Plate, Front + Rear Ambient Lighting, LED Interior Bulbs, Grooved Dimpled Disks, Ultimax Pads, RNS-E DVD, Tinted Windows, S4 Grill, Votex Rear Skirt, BOSE, Leather, Engine Covers, S4 Mirrors, RS4 Pedals, Gloss Black Wrapped Grills, 19" BBS LM's Summer, 19" RS6's Winter, Coilovers



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