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New copen owner

Discussion in 'Introductions' started by Isaak, Apr 29, 2016.

  1. Isaak

    Isaak Copenworld Newbie

    Joined:
    Apr 29, 2016
    Location:
    West milands
    Car(s):
    Daihatsu copen.
    Audi A6.
    Hi all, just bought a Copen with a misfire, hoping to try and do this my self with the help of this forum, thanks.
     
  2. Number6

    Number6 Copenworld Veteran

    Joined:
    Apr 25, 2013
    Location:
    Dublin
    Car(s):
    2005 0.7L Copen
    Is the MIL / CEL on? what codes is the ECU throwing?
     
  3. Salieri

    Salieri Copenworld Veteran

    Joined:
    Jun 19, 2012
    Location:
    Germany
    Car(s):
    Pearlescent White Copen (1.3 K3-VE)
    We had someone a while back on another copen forum, their fix for the problem was to carry a mobile OBD2 reader in the glovebox to clear the check engine light, as the misfire was intermittent
     
  4. Chrismadeley

    Chrismadeley Copenworld Member

    Joined:
    Sep 4, 2012
    Location:
    Canterbury, Kent, UK
    Car(s):
    Copen Vivid Special Edition
    Yes I have to say that I am using an OBD2 reader to check and clear the engine light because I have the intermittent misfire problem too!
     
  5. Isaak

    Isaak Copenworld Newbie

    Joined:
    Apr 29, 2016
    Location:
    West milands
    Car(s):
    Daihatsu copen.
    Audi A6.
    Hi, the funny thing is there are no codes coming up, I'm using a launch x431 master.
    Car fires up fine with a misfire at idle, cylinder 4 misfire, when I remove the coil plug, no different. Looked down the cyl 4 spark plug hole and dry as a bone.
    Dry compression test, removed fuel pump relay, removed all plugs then test, is that correct. I'm not a mechanic so learning as I go along.
    1=100psi
    2=100psi
    3=100psi
    4=20 psi
     
  6. jez77

    jez77 Copenworld Regular

    Joined:
    Jan 16, 2015
    Location:
    Brisbane Australia
    Car(s):
    2003 Daihatsu Copen
    2000 Toyota RAV4
    Squirt some oil down cylinder 4 spark plug hole.
    If the compression goes up its faulty rings, if not it will be a valve problem.
    You should check the injector is working too as if it was partly blocked that cylinder would be running lean and may have caused the issue originally.
     
  7. Isaak

    Isaak Copenworld Newbie

    Joined:
    Apr 29, 2016
    Location:
    West milands
    Car(s):
    Daihatsu copen.
    Audi A6.
    Cheers jez77, tried the oil and rechecked compression, still the same so I guess valve issue.
    Injectors I'll get tested towards the the end of the rebuild.
    I have been taking pics as I'm going along, have changed phone since so will download and upload to photobucket.
    So far I have removed the rocker cover, injector rail, inlet manifold and any surrounding pipes, cables plugs, so far so good, so many nuts n bolts, I wouldn't know where to put them back so I've bagged and labled them.
    Only get the odd weekends to fiddle hence the delay.
    Now I'm ready to remove the exhaust manifold but struggling to remove the heat shield to get to it. Didn't want to remove the front end to do it but might have to. Once exhaust manifold is off, I'm assuming the head is ready to come off at which point I'll get my mechanic mate to have a look and advise further.
    Will update as I go along.
     
  8. Isaak

    Isaak Copenworld Newbie

    Joined:
    Apr 29, 2016
    Location:
    West milands
    Car(s):
    Daihatsu copen.
    Audi A6.

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