Sky InsuranceEM Tuning
Results 1 to 5 of 5

Thread: Erratic Idle

  1. #1
    Olly P's Avatar
    My other cars a mk2 Golf GTi

    Status
    Offline
    Join Date
    Dec 2008
    Location
    Oxford
    Posts
    686

    Angry Erratic Idle

    So, i've got an erratic idle on my 2005 A4 DTM. Fairly regularly, when I come to a stop the revs rise to around 1200 then lowly falls back to 800 ish.

    I've taken the car to a garage to fit coilovers recently and asked them to look at the problem They fixed a small boost leek and this cleared the engine management light.... after a day its now retuned.

    Is there anything I should check before taking it back? I don't have a copy of vag-com so can't scan for the code, i'm just wondering if any ones had similar problems? I've seen a few threads suggesting that it could be a faulty PCV valve?

    Any help much appreciated

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    6th Gear

    Status
    Online
    Join Date
    Feb 2010
    Posts
    2,165
    I would look at the MAF, you could unplug it and see if the fault still occurs. Had this on a couple of my A4's and and it was the MAF. First one I was able to clean the other had to be replaced.

  4. #3
    Olly P's Avatar
    My other cars a mk2 Golf GTi

    Status
    Offline
    Join Date
    Dec 2008
    Location
    Oxford
    Posts
    686
    Brilliant, thanks for the info

  5. #4
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2006
    Location
    N.Ireland
    Posts
    369
    I heard the coolant temp sensor can also cause this issue, if you scan the car with vag-com or even a generic OBD reader it will help point you in the right direction.

  6. #5
    1st Gear

    Status
    Offline
    Join Date
    Jun 2011
    Location
    Manchester
    Posts
    248
    I had a similar issue as yours, turned out to be the N80 valve.
    Read my thread here:
    Emission Control warning Light, erratic idle speed = my car doesn't like motorways!
    2005 B7 A4 2.0T in Moro Blue

    Interior, Number Plate & Sidelight LED's from T8ups, 18" 9 Spoke TT Wheels.
    BGB Engine Code.


 

 

Similar Threads

  1. Erratic idle
    By RobI in forum A2 forum
    Replies: 19
    Last Post: 23rd February 2012, 21:06
  2. Erratic idle
    By Ewok in forum A6/S6/Allroad forum (C5 Chassis)
    Replies: 2
    Last Post: 9th September 2006, 11:34
  3. Friends A6 Cuttiung Out and Erratic Idle
    By myrichdad in forum A6/S6/Allroad forum (C5 Chassis)
    Replies: 0
    Last Post: 4th September 2005, 21:15
  4. erratic idle??
    By MickA3 in forum A3/S3 Forum (8L Chassis)
    Replies: 17
    Last Post: 10th August 2005, 10:39
  5. Audi 80 1993 2.0l Erratic Idle... Help???
    By imported_stephens_aj in forum Classic Audi Forum
    Replies: 2
    Last Post: 28th July 2004, 21:44

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO