AH FabricationsSky Insurance
Results 1 to 2 of 2

Thread: A3 Help

  1. #1
    Neutral

    Status
    Offline
    Join Date
    May 2008
    Location
    Middleton, Manchester
    Posts
    43

    A3 Help

    hello!

    a few questions about my first Audi!

    its a 1998 A3 1.6i, i think the air flow meter is either sticking or on its way out. when idling it seems to fluctuate between 1000 rpm and 900 sort of bouncing effect. whilst the engine is running i have tapped onto the airflow meter and the filter box and the revs have steddied up and stayed at a constant for a few seconds before starting again. when driving, if i floor it (so to speak!) it feels like either not enough or too much air is getting to the engine or even if its misfireing. when accelerating onto the motorway in 3rd or 4th off a slip road, seems to be a lack of power then it will kick in then drop then kick in again. at a constant speed its fine to some extent.

    i was also thinking of spark plugs? coudl this heklp along with an air filter?

    i also thinkt ehre my be a hole in the exhaust. lack of power due to not anough back pressure?

    coudl someone help me top either diagnose, fix or get a an estimated cost for this to be put right.

    thanks for your help

    Gee

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    audi5e's Avatar
    4th Gear

    Status
    Offline
    Join Date
    Jun 2004
    Location
    Johannesburg, South Africa
    Posts
    809
    Check all the inlet air hoses and clamps. If any of these are broken, split or loose, then you will get extra unmetered air entering the engine and messing up the mixture. Basically these are all air hoses and pipes between the air filter and the inlet manifold (include checking the manifold itself, gaskets can also cause extra air to enter the engine), If there is a crankcase breather pipe make sure that is also connected and sealing properly. You might find when you knock the air filter you are inadvertently sealing a leak...
    Bird watching freaks of the world unite at:
    http://www.simplybirding.com
    Even the RSPB would be afraid...

 

 

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