Above Forum Ad

Collapse

Announcement

Collapse

Email Notifications Failing (mostly Telstra)

Hello everyone. Seems there is an issue with Telstra (possible others) blocking email from our server. If you are trying to sign up I would suggest a different email if possible. If you're trying to reset your password and it fails please use the Contact Us page:
See more
See less

MK4 GTI Misfire

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • MK4 GTI Misfire

    Hey all,
    Got a MK4 GTI thats not firing on 4 cylinders, we changed plugs and coil packs, thats not the problem. Is there any other common problems that it would be? Thought i would ask before i get deeper into it.
    MK4 GTI (KO4, GIAC)
    VW Kombi Ute 2ltr EFI
    Audi 90 20V Quattro

  • #2
    Coil packs.

    Comment


    • #3
      H T Leads?
      sigpic Camden GTI Performance. VW / AUDI Specialists
      All Mechanical Work, Log book Servicing, New and used Parts and Imports
      19-20/6 Badgally Road, Campbelltown, 2560
      02 4627 3072 or 0423 051737 www.camdengti.com

      Comment


      • #4
        Originally posted by Golf Loon
        H T Leads?
        You mean connectors? The leads last forever. (They're copper)

        Comment


        • #5
          You need to scan it with VAG-COM the amount it can tell you is amazing.

          The only thing I have heard that fails all the time apart from coil packs is the water temp sender. Check you have a green one fitted the black ones are the duff ones.

          Gavin
          optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

          Comment


          • #6
            Originally posted by h100vw
            You need to scan it with VAG-COM the amount it can tell you is amazing.

            The only thing I have heard that fails all the time apart from coil packs is the water temp sender. Check you have a green one fitted the black ones are the duff ones.

            Gavin

            Vag com doesnt pick up misfires on a mk4 Golf .

            The ignition module is on the side of the airbox near the MAF . Disconnect it and clean the 2 plug terminals and put it back in . Sometimes that fixes the problem . If it doesnt work try and find another one to swap it with
            Bug_racer supports the rebellion of the euro revolution

            Comment


            • #7
              Syncro- Already changed coil packs, thats not the problem.

              Golf Loon- Are you getting this mixed up with a 1.6/2ltr? Unless you mean those leads to the coil packs.

              H100VW - Already changed the black temp probe to green a while back, I will scan it tomorow when i have time to look.

              Bug_racer - I will try that.

              Thanks for the info guys. I will look at it tommorow when i have time, i just thought there might be a common thing apart from coil packs.
              MK4 GTI (KO4, GIAC)
              VW Kombi Ute 2ltr EFI
              Audi 90 20V Quattro

              Comment


              • #8
                Can you isolate any particular cylinder?

                Comment


                • #9
                  i havn't even looked at the car yet, i will tommorow though.
                  MK4 GTI (KO4, GIAC)
                  VW Kombi Ute 2ltr EFI
                  Audi 90 20V Quattro

                  Comment


                  • #10
                    Originally posted by Bug_racer
                    Vag com doesnt pick up misfires on a mk4 Golf .
                    Is that a feature of the NA ECU cos I have seen it on 1.8Ts.

                    Gavin
                    optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

                    Comment


                    • #11
                      Vag com doesnt pick up misfires on a mk4 Golf .

                      it does as has built in ociliscope

                      Comment


                      • #12
                        Originally posted by william
                        Vag com doesnt pick up misfires on a mk4 Golf .

                        it does as has built in ociliscope
                        I think he may mean as a fault code in it's own right.
                        Gavin
                        optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

                        Comment


                        • #13
                          Bug Racer- You were right, it was the ignition control module, runs fine now! I tell you what a MK4 GTI with a KO4 turbo and a GIAC chip goes good as! I wanna get a Audi A4 1.8T Quattro with the same mod now lol.
                          MK4 GTI (KO4, GIAC)
                          VW Kombi Ute 2ltr EFI
                          Audi 90 20V Quattro

                          Comment


                          • #14
                            How do you know it is a misfire? Sorry for the silly question.. *newbie*

                            Comment


                            • #15
                              Fuel pump and/or filter?:/

                              Comment

                              Working...
                              X