Danyutz Posted January 6, 2015 Report Share Posted January 6, 2015 Guys, my car starting to stutter/hiccups up to 2k rpms, in all gears. There is no error or any other symptom. Tried changing the gasoline, but still does it - no matter if it's cold or warm engine.Anyone experienced this before? Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 6, 2015 Report Share Posted January 6, 2015 Dany, sounds like plugs are on the way out to me so I'd start there. If changing your plugs helps you'll want to change your leads fairly soon as well.Could also be coil pack but I always start with the above.I suggest getting a cheap OBD2 scanner. They are now less than £10 and really should be in everyone's dash in case you develop a fault Quote Link to comment Share on other sites More sharing options...
Danyutz Posted January 6, 2015 Author Report Share Posted January 6, 2015 Weird because I changed the plugs one year ago with NGKs, but i'll check them again, leads as well. Thanks mate. Quote Link to comment Share on other sites More sharing options...
Chino_UK Posted January 7, 2015 Report Share Posted January 7, 2015 Just had same issue with our Sport, was the coilpack, leads needed replacing also. Quote Link to comment Share on other sites More sharing options...
lupogtiboy Posted January 7, 2015 Report Share Posted January 7, 2015 My GTI was doing this for a while, above 2k rpm it was fine. I found I had an HT lead with a break in the insulation on cylinder 4, so it was arcing on the cylinder head. Swapped it over and been fine since. Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 7, 2015 Report Share Posted January 7, 2015 As I always say, if you do replace the leads only, clean your plugs. Quote Link to comment Share on other sites More sharing options...
Danyutz Posted January 10, 2015 Author Report Share Posted January 10, 2015 Ok, checked the plugs - fine, leads - fine, ignition coil - not so fine - it has around 3-4 small cracks. I'm gonna change it see if it fixes the problem. 1 Quote Link to comment Share on other sites More sharing options...
Skezza Posted January 12, 2015 Report Share Posted January 12, 2015 Good to hear. I would still in time change your leads and plugs. You'll restore some performance Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted January 13, 2015 Report Share Posted January 13, 2015 Also checked my plugs...Pretty sure they didn't need it but changed anyway. Yet to feel any stutter but it's an intermittent problem anyway so i'll give it some time...Not convinced it's fixed. Quote Link to comment Share on other sites More sharing options...
Danyutz Posted January 14, 2015 Author Report Share Posted January 14, 2015 Behaves on slight accelerations or upon flooring the car? Mine does when flooring it. Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted January 14, 2015 Report Share Posted January 14, 2015 (edited) It was doing it on half throttle or more, yeah.No judder as yet - thinking of just replacing leads and coil pack anyway. Edited January 14, 2015 by Lupo675 Quote Link to comment Share on other sites More sharing options...
Danyutz Posted February 6, 2015 Author Report Share Posted February 6, 2015 This has been fixed and I haven't replaced the coil pack. I replaced the thermostat and it works. Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 15, 2015 Report Share Posted February 15, 2015 Struggling to see how that would fix it to be honest? Unless the problems we have arnt the same... Anyway, I'll keep using this thread and hopefully more advice can be given as I've still got the same issue and if anything it seems to be worse. I've just replaced coilpack and it's made no real difference. The old coilpack did have a small crack down the middle back of it though...So current symptoms are:Fine in 1st gear mostly, sometimes judders/stutters like it's bogging down when I get biting point and go to take off. In 2nd gear onwards it judders, drops power, doesn't rev, bogs down (feeling) from 1-3K revs. If you give 1/2 throttle or more.... If you're further up the revs to start with, say 2K onwards it doesn't do it really, just flies through the 'power band'. Earlier today in 3rd, low revs (<2K) it was stuttering and misfiring - popping noise from exhaust engine. It was also doing this in neutral (no load on engine) when letting the revs die down then rev'ing full throttle.I also got the following fault codes come up on friday after the juddering and lack of power issue (had a few EML lights appear then disappear);So yeah, people still thinking leads? Or possibly now injectors? Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 20, 2015 Report Share Posted February 20, 2015 Well, would be nice to get a reply...Update anyway - earlier the car was awful, stuttering, misfiring, dropping power, EML light coming on and off. Then eventually the EML light just stayed on permanently.Read the fault codes again but instead of them being "Pending Faults" they were "Current Faults" - it's not the greatest diagnostic tool I know but its still telling me something is up with cylinders 1 & 2. Making me sad, the car being ill. Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 20, 2015 Report Share Posted February 20, 2015 Change the leads if our feeling flush or I'm not sure about the gti's coilpack or leads. But if you can swap the leads on 1-4 and 2-3. But obviously so you keep the firing order the same then if you get misfire on the 3-4 cylinder instead of 1-2 then you know it's the leads. If not then you know it's not the leads. 1 Quote Link to comment Share on other sites More sharing options...
lupogtiboy Posted February 20, 2015 Report Share Posted February 20, 2015 Mines started misfiring, done all the obvious with new coil pack, plugs and my spare leads. Was fine for a few days and is misfiring again. Scanning it on vcds it shows cylinder number 4 injector malfunction which is annoying! It did initially clear off and then run ok for 5-10 minutes then start to misfire again and the same fault come up. Looks like I need a new injector! 1 Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 21, 2015 Report Share Posted February 21, 2015 Cheers guys! Yeah, the leads are pricey arnt they - about 20 quid each! I'm thinking it could well be injectors too...But I have no codes telling me it is? Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 21, 2015 Report Share Posted February 21, 2015 £20 each!! Then try as I said to make sure it is or not. If you have then replace coil pack, leads, plugs then it's an engine, ecu or injector problem IMO. 1 Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 21, 2015 Report Share Posted February 21, 2015 £20 each!! Then try as I said to make sure it is or not. If you have then replace coil pack, leads, plugs then it's an engine, ecu or injector problem IMO.Only Issue I forsee with this is that as each Lead is length specific, they wont reach when swapping them around. Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 21, 2015 Report Share Posted February 21, 2015 Live near another gti owner? Quote Link to comment Share on other sites More sharing options...
Danyutz Posted February 21, 2015 Author Report Share Posted February 21, 2015 Mine's back with stuttering too! Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 23, 2015 Report Share Posted February 23, 2015 Mine's back with stuttering too!Ah bummer man, didn't think the thermostat would fix it though.Mines currently in a garage as they have better diagnostic equipment than me!I did get a call suggesting it could be a headgasket on the way out due to finding some evidence that coolant was mixing in the chamber but I'm not convinced...yet. Never overheated or had to top up coolant. They can recreate the misfiring or stuttering yet either so it's with them for a little longer after me explaining exactly when I was seeing it.I'll report back!Live near another gti owner?Not that I know, barely see them on the road as it is! Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 23, 2015 Report Share Posted February 23, 2015 Do you have vagcom? If not that would have been a better investment of money than giving it to the garage. Quote Link to comment Share on other sites More sharing options...
Lupo675 Posted February 24, 2015 Report Share Posted February 24, 2015 Do you have vagcom? If not that would have been a better investment of money than giving it to the garage.I do not but I was using that Torque app which seemed alright...Anyway got a call from the garage today "You're gonna kick yourself..."HT Leads.So you were all right and I'll get my coat, haha. Quote Link to comment Share on other sites More sharing options...
Dblock Posted February 24, 2015 Report Share Posted February 24, 2015 Vagcom is alot more accurate than OBD2 readers. OBD2 readers will give you the gist but vagcom you can use to diagnose more thoroughly, Well atleast it's fixed. 1 Quote Link to comment Share on other sites More sharing options...
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