jacko Posted July 1, 2009 Share Posted July 1, 2009 I just started my car up and it seemed a little bit lumpy, but didnt really think much of it. I just picked a mate up and the idle got worse and then when i drove off it sounded like a mix between a V12 and a generator..... Any ideas? Im guessing something ignition related? I nursed it home and it was driving semi ok Cheers Quote Link to comment Share on other sites More sharing options...
Dave17 Posted July 1, 2009 Share Posted July 1, 2009 Check the usual ignition bits, coils, leads and all that, is yours a TT or n/a? Quote Link to comment Share on other sites More sharing options...
jacko Posted July 1, 2009 Author Share Posted July 1, 2009 its tt Quote Link to comment Share on other sites More sharing options...
j1mb0b1 Posted July 1, 2009 Share Posted July 1, 2009 I have had the same thing mate it turned out some of my coil pack connectors was loose, Have you had a service recently ?. Because they may not have put them back on right and sometimes the plastic clips brake so I would check them bud !! Quote Link to comment Share on other sites More sharing options...
jacko Posted July 1, 2009 Author Share Posted July 1, 2009 (edited) Ive just had a quick look but couldnt see much- i'll have a proper look over the weekend. I had some new plugs put in the other week. Also about half an hour before it started misfiring i had the ignition cover off- so im hoping that ive just knocked something whilst doing that Edited July 1, 2009 by jacko (see edit history) Quote Link to comment Share on other sites More sharing options...
DSK Posted July 1, 2009 Share Posted July 1, 2009 I have suffered from this for over 2 months finally having a go myself at the repair. First time round it was a disintegrated coil pack connector & failed ignition coil and second time round it was a disintegrated coil pack connect. I have done 2 myself and taking ti to a garage to have the remaining 4 done. Misfires are usually ignition related so coil pack clips and coils are the most likely cause. Quote Link to comment Share on other sites More sharing options...
MarkR Posted July 1, 2009 Share Posted July 1, 2009 Also check your battery connections. They sometimes do weird things. Quote Link to comment Share on other sites More sharing options...
bradleyh_15 Posted July 1, 2009 Share Posted July 1, 2009 I had one and replaced everything ignition wise and it was still missfiring and then replaced the rockercover gaskets and that sorted it!if you do need any coil pack connectors I have some spare!not that they are expensive! Quote Link to comment Share on other sites More sharing options...
jacko Posted July 1, 2009 Author Share Posted July 1, 2009 Well, i just went and had a fiddle with the connectors but that didnt do anything, so i started disconnecting the coil packs and when i disconnected the one at the front it made no difference to the way it ran, so theres the problem i hope. Now just got to see if its plug or the coil pack! I shall now be able to sleep tonight without pound signs going thru my head constantly! Cheers for the help Quote Link to comment Share on other sites More sharing options...
bradleyh_15 Posted July 1, 2009 Share Posted July 1, 2009 that's a load off then mate! Quote Link to comment Share on other sites More sharing options...
jacko Posted July 2, 2009 Author Share Posted July 2, 2009 As long as that's the problem ye- The only other thing is that i picked a mate up who is rather large and when its low on petrol it doesnt like it, as it makes the car sit on the wonk. So i dont know if maybe the pump sucked up some crap out the bottom of the tank- i know it shouldnt make it to the injector, but who knows! Quote Link to comment Share on other sites More sharing options...
jacko Posted July 2, 2009 Author Share Posted July 2, 2009 (edited) Well.... I just went out for another look and decided to swap the first two coil packs round to see if the problem moved with the coil pack- it didnt move, the problem just went away! Must have been a dodgy connector, but i checked those last night! Arghh!! Bloody cars Edited July 2, 2009 by jacko (see edit history) Quote Link to comment Share on other sites More sharing options...
jacko Posted July 3, 2009 Author Share Posted July 3, 2009 Now im getting annoyed! I got in my car this morning to go to work and the problem was back. So i took the ignition cover off and unplugged the first, then the second coil pack- The problem was still on the first cylinder, even though the coil packs had been swapped round- So what are the possibilities now? Dodgy clip or dodgy injector? Quote Link to comment Share on other sites More sharing options...
tbourner Posted July 3, 2009 Share Posted July 3, 2009 I assume the white plastic bit in the middle of the coil pack plug is still intact and not crumbling? Quote Link to comment Share on other sites More sharing options...
Guest Luigi Posted July 3, 2009 Share Posted July 3, 2009 A bit of crap in the injector? Quote Link to comment Share on other sites More sharing options...
tbourner Posted July 3, 2009 Share Posted July 3, 2009 When mine was running badly it turned out to be a faulty FCD so the ECU had no clue how much fuel to put in! Quote Link to comment Share on other sites More sharing options...
jacko Posted July 3, 2009 Author Share Posted July 3, 2009 Im not running an FCD so cant be that, also its not just running badly, it's down on one cylinder- because i can disconnect the first coil pack and it runs exactly the same. Ive just ordered a couple of clips from Mr T to try and then if that doesnt solve then i'll be looking at the injector i think Quote Link to comment Share on other sites More sharing options...
jacko Posted July 4, 2009 Author Share Posted July 4, 2009 Ive changed the clips and the problem is still there. I have also swapped the coil packs and the spark plugs round, but the problem remains on the front cylinder. Any ideas? I took it for a drive this morning and it was fine and now ive changed the clips it doesnt want to know again Quote Link to comment Share on other sites More sharing options...
jacko Posted July 4, 2009 Author Share Posted July 4, 2009 What should i try next? It's running a Blitz ecu, so would it be worthwhile swapping that with the standard one? Quote Link to comment Share on other sites More sharing options...
tbourner Posted July 4, 2009 Share Posted July 4, 2009 How do you know the problem is on the front cylinder? It sounds very intermittent and since you've changed all the plugs and clips and stuff I would think it's probably coincidence that your swapping of coil packs has removed or replaced the fault giving you the impression it's a particular cylinder missing. I can't help with what to try next though sorry, just saying don't assume you know where and what the fault is cos (like my problem) it turned out to be something really random and obscure that I hadn't thought to check. Quote Link to comment Share on other sites More sharing options...
jacko Posted July 4, 2009 Author Share Posted July 4, 2009 Well i can disconnect the front coilpack and the car runs exactly the same, unplug any of the others and it runs worse. Ive swapped plugs and coils round and it still happens only on the front cylinder Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted July 4, 2009 Share Posted July 4, 2009 So it sounds likely its the front cylinder, but not the coilpack or clips Compression test? Quote Link to comment Share on other sites More sharing options...
jacko Posted July 4, 2009 Author Share Posted July 4, 2009 (edited) Ive just swapped my ECU over and the problem seems to have gone away! (except it's now hitting fuel cut) Has anybody ever known of an ecu to stop sending the earth signal to the coilpack? Edited July 4, 2009 by jacko (see edit history) Quote Link to comment Share on other sites More sharing options...
jacko Posted July 8, 2009 Author Share Posted July 8, 2009 Over the past couple of days the missfire has started to rear its head again, but i havent had a complete cylinder go down like last time. So after thinking it was an ECU issue, it appears it isnt, as ive refitted the Blitz Access and it is running the same. It doesnt sound too bad, but theres a distinctive "poofing" from the exhaust. I also thought i would check the fault codes, but i put the wire accross the two terminals, turned the ignition on and there was no light to be seen. So maybe the bulb's blown and that's why i havent seen the engine light come on at any point?? Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted July 8, 2009 Share Posted July 8, 2009 You haven't had the injector changed yet. Do that and report back. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.