miss fire

1. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #1 27th November 2014, 16:33

   Hello. Been out and abou in car today left if for a hour came back to it started it and it ran rough wouldnt tick over....turned it of started it and did same untill i drove it. It was holding back untill i got to 30mph and run fine. Turned it off put petty in started it done same untill i got upto speed ..... am i right in thinking this could be coil pack???
2. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #2 27th November 2014, 16:34

   Mk2 saxo vtr
3. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #3 27th November 2014, 18:03

   Could well be the coil pack,but get it plugged into a diagnostics machine first.
4. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #4 27th November 2014, 18:10

   Im gunna buy one mate there only a tenner, if that fails ill scrap it lol.
5. Manu Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned

   #5 27th November 2014, 18:20

   Might be just a bit of condensation and starting from cold. Service the car, plugs, air filter etc and it shouldn't happen. If you done that already, try cleaning your plugs and coilpack connections, spray a little wd40 before plugging back.
6. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #6 27th November 2014, 18:43

   yeah it got serviced a few months back, I have fitted a 4-1 manifold around two months ago so it has no cat now. the engine management light is on and it stinks of petrol at the moment. I have plugged first lambda in and tie wrapped second one up and it has been running fine until this problem.
7. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #7 27th November 2014, 18:44

   the management light has been on since I fitted the piper manifold
8. Manu Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned

   #8 27th November 2014, 19:13

   There's your problem. When your lambda sensor pops up, the car overfuels a bit. That might explain the petrol smell. If your air filter or plugs get a bit of moisture, you'll get some misfire.
9. jayjay1984 Newbie Joined: Feb 2014 doncaster Posts: 29 saxo vtr, astra mk3 gsi c20 let

   #9 27th November 2014, 20:37

   The car been spot on tbh. Ill have a good look tomorow and let you know how i get on.