Important! : Misfiring on Idle, Struggling to start and Cutting out after Starting.

1. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

   #1 2nd June 2011, 17:37

   As title states. My T Reg GTi will sometimes start fine but will run lumpy. Sometimes it will turn over for about 5 seconds and then struggle to start and then cut out. Over a month it has properly misfired 3 times whilst idleing at a junction, rev's dropped to 300 then back up to rough idle at about 700/800, it is running very lumpy, car shakes very slightly on idle. Today after it cut out I had to leave it 5 minutes before it would start again.
   
   So far i've changed the spark plugs, fuel filter, given it a full service, cleaned both the throttle body and the ICV and the problem is gradually getting worse. I decatted the car yesterday with a Pugsport and its only today it wouldn't start.
   
   Is this a potential coilpack problem? Should I be looking at the Lamba sensor? What else should I be looking at?
   
   Thanks in Advance.
2. tomnelson Frequent Poster Joined: Dec 2010 coalville Posts: 711 project flat arch

   #2 2nd June 2011, 19:03

   best thing you can do is get it pluged into a fault code reader or a machine.
   it could be, coil pack, lamda senor, maybe inlet oxygen sensor, cam senor. if you know anyone that has the same car as you see if they will let you borrow there car to swap parts
3. emma281290 Infrequent Poster Joined: Jun 2011 Rugby Posts: 108 Icelandic Grey Vtr!

   #3 2nd June 2011, 19:33

   mine was doing this and then all of a sudden it just stopped and has been fine since.
4. user_48120 Established Member Joined: Oct 2010 Southampton/Reading Posts: 1186 Cars Are For Gays.

   #4 2nd June 2011, 19:35

   mine did exactly this, was idling like a bitch and was just missfiring whilst reving!
   
   i changed my coilpack and it seemed to be fine
5. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

   #5 3rd June 2011, 00:49

   The engine management light hasn't come on so surely there wouldn't be any codes to be read? My mate has a GTi and i'm stealing some parts on Sunday to see what it could be.
6. Manolis L-plater Joined: May 2011 Greece Posts: 51 Mk2 Vts

   #6 3rd June 2011, 10:16

   Quote:

   Originally Posted by Davey-Prater The engine management light hasn't come on so surely there wouldn't be any codes to be read? My mate has a GTi and i'm stealing some parts on Sunday to see what it could be.

   Nope my phone read a misfire yesterday and there wasnt an engine management light on, on my dash. .
7. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

   #7 3rd June 2011, 16:20

   Ah okay i'll go check it now.
8. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

   #8 3rd June 2011, 23:25

   I don't have the right diagnostic tools to read my ECU, I need Lexia(?) and they go for £100 on ebay for stuff that. Am gonna steal some of my mates parts on Sunday and will report back.
9. Manolis L-plater Joined: May 2011 Greece Posts: 51 Mk2 Vts

   #9 4th June 2011, 00:39

   Quote:

   Originally Posted by Davey-Prater I don't have the right diagnostic tools to read my ECU, I need Lexia(?) and they go for £100 on ebay for stuff that. Am gonna steal some of my mates parts on Sunday and will report back.

   Well it depends if your car is single plug or 3 plug.Mines a 3 plug so i can use the obd2 adapter which i found on ebay(ELM 327) for around 19 dollars and downloaded Torque app from android market to my phone which worked fine.
10. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

    #10 4th June 2011, 12:29

    It's single plug so i believe i need a Lexia diagnostics tool.
11. bessos123 Newbie Joined: Jan 2011 Shropshire Posts: 13 1.1 desire

    #11 11th June 2011, 16:47

    I was driving down the motor way this morning next thing i know i get a loud pop and start loosing power, pulled over and my engine cut out. Phoned th AA and £130 later turns out my coilpack was fooked :/
12. coleman258 Established Member Joined: Nov 2008 Eastbourne Posts: 2474 Astra van daily Black Saxo VTR 16v'd kent PT51

    #12 12th June 2011, 09:27

    Quote:

    Originally Posted by bessos123 I was driving down the motor way this morning next thing i know i get a loud pop and start loosing power, pulled over and my engine cut out. Phoned th AA and £130 later turns out my coilpack was fooked :/

    I broke down yesterday. Hopefully this is my problem.
    
    Did the AA just drop you at a garage?
13. Davey-Prater Infrequent Poster Joined: Feb 2009 Middlesex Posts: 106 Peugeot 106 GTi, Fiat Punto Sporting

    #13 7th July 2011, 17:19

    Update on the situation, haven't got around to trying to fix the problem. However it did worsen a little bit, sometimes it would just turn over without firing, I then discovered this could be cured by priming the fuel pump a couple of times and it would start fine. Started it today and it sounds like its running on 3 cylinders, really rough and gases are coming out of the exhaust in half second bursts instead of constant.
    
    So fuel pump or injector issue?