Welcome, Guest. Please login or register.

Login with username, password and session length


Author Topic: Misfire on start up, no warning lights  (Read 1707 times)

Offline jas_racing

  • Abarth Wannabe
  • *
  • Posts: 24
  • Carlo Rating: 0
    • United Kingdom
Misfire on start up, no warning lights
« on: July 10, 2016, 08:11:07 am »
Hi guys,

Had my AGPSS sorted with new suspension & wheels, rebuilt gearbox, all new brakes, etc, etc, and has been running & driving sweet for months now but in the last couple of weeks she's developed a misfire on cold start that's got me scratching my head.

It's only for a few seconds on start and sounds like it's a cylinder or two down, but then clears itself and runs fine after that. No lights on the dash and nothing being picked up when I plug my OBD reader in. I changed all 4 spark plugs as a precaution but still the same. I have also noticed a slight metallic 'tap' or rattle from the engine on cold start too, seems to coincide with the misfire so I'm wondering if the two things are linked?

Any thoughts or ideas chaps?

Thanks :)

AbarthForum.co.uk

  • Advertisement
  • ***

    Offline jas_racing

    • Abarth Wannabe
    • *
    • Posts: 24
    • Carlo Rating: 0
      • United Kingdom
    Re: Misfire on start up, no warning lights
    « Reply #1 on: July 11, 2016, 11:05:24 pm »
    Just realised that I posted in the wrong section, mods/admin can you move it please?

    Thanks, Jeremy.

    Offline Thrusty

    • Newbie
    • *
    • Posts: 2
    • Carlo Rating: 0
      • Manchester
    Re: Misfire on start up, no warning lights
    « Reply #2 on: July 12, 2016, 10:02:04 am »
    plugs coilpack mate

    Offline shadyracer

    • Assetto Corse Member
    • ****
    • Posts: 274
    • Carlo Rating: 1
    Re: Misfire on start up, no warning lights
    « Reply #3 on: July 12, 2016, 06:57:14 pm »
    Could be fuel injector misfuelling the cylinder. I had similar issue and since using injector cleaner added to tank at next fuel fill up , have had no problems. 

     

    hungry