Misfiring

[1944screen]

Hi,I own a 2006 Fiesta,every so often,it did it yesterday,I'm driving along and the car appears as if it is being starved of petrol,which it isn't.It only lasts for a couple of seconds and dosen't cut out,then picks up again and all is fine.There is no telling when this is going to happen,it seems to please its self.Any ideas? Thanks

[ChuckFickens]

Assuming all the obvious things are OK (filters, plugs, leads etc) then first thing I'd look at is (carefully) cleaning the MAF sensor.

http://www.photostand...mxg3z0hcroop98bep.jpg

It sits in the pipe right on the outlet from the airbox, it's the thin wire that needs to be clean, so very carefully clean it using IPA or carb cleaner (I say very carefully because if you break the wire you'll need to buy a new MAF sensor and they are not cheap)

[AlBags]

Well ... what engine size? How many miles has it done?
Open road stuff .. or town/short trips?

[1944screen]

I'ii try that chuck,thanks.
In reply to Albags,it's a 1.25 with 33000 on the clock.I must admit it only seems to happen when I'm local,though I do try to avoid silly short runs.
Thanks.

[AlBags]

Low mileage for a problem like that.
In this case, I would probably take intake pipe/cover off and clean throttle body with carb cleaner first.

[1944screen]

Will try them today.Thanks