#1: strange missfire Author: mikesrob, Posted: Thu Jun 20, 2013 2:53 pm ---- Hi, my daughters w reg 14 206 has an intermittent missfire, goes for days with no missfire,then all of a sudden it missfires, the missfire varies from a slight miss to an all out, hardly moving missfire, not weather related as it happens in all weathers, coil pack / plugs have been changed.No fault codes come up at all. The only thing i have noticed is that there is a crack around the exhaust back box and it is loose, could this cause a missfire?, thanks for any replies in advance , Mike
#2: Re: strange missfire Author: lukepug19, Location: OxfordshirePosted: Fri Jun 21, 2013 3:47 am ---- a cracked exhaust cant cause a misfire you could have an intermittant injector fault or quite possibly be ecu related
#3: Re: strange missfire Author: V9977, Location: Athens, GreecePosted: Fri Jun 21, 2013 10:47 am ---- Or driving related, due to condition of the valves.
#4: Re: strange missfire Author: MrBSI, Location: What's it to you? ? ?Posted: Fri Jun 21, 2013 10:54 am ----
mikesrob wrote:
coil pack / plugs have been changed
What make of coil & what make of spark plugs where fitted?
#5: Re: strange missfire Author: V9977, Location: Athens, GreecePosted: Fri Jun 21, 2013 10:56 am ----
MrBSI wrote:
mikesrob wrote:
coil pack / plugs have been changed
What make of coil & what make of spark plugs where fitted?
And when, before or after the misfire appeared?
#6: Re: strange missfire Author: mikesrob, Posted: Fri Jun 21, 2013 11:04 am ---- dont know the make of coilpack,nkg plugs, misfire was there before putting in new coilpack and plugs
#7: Re: strange missfire Author: HowlingMadMurdock, Location: Ashington, NorthumberlandPosted: Fri Jun 21, 2013 2:23 pm ---- Is the tickover normally stable? If it doesn't idle properly I'd follow Timon's throttle body/sensor cleaning guide, it does make a difference.
Have you tried any fuel treatment? My 1.4 was running like a bag of nails when I got it, followed Timon's guide, filled up with petrol and put some fuel treatment in, did a 320 mile run on the A1, and she felt a different car after that. Maybe the injectors just need a bit of clean?
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