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Focus 1.0Ecoboost rough idle when cold


Ajjones325
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Hi all, 

 

My Mk3 Focus 1.0Eco boost has been rough idling when cold for several weeks now, once warm it seems OK. I've had the injectors out, changed the seals n given them a good clean out and they seem to be spraying fine. Changed spark plugs, cleaned sensors n filter and it's still not any better, in fact it's actually started to pick up a misfire now on both 1 & 3 piston.  One thing I have noticed is that the start stop isn't working, I've checked battery voltage n it's reading around 12v. 

 

Has anyone had this issue before? 

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45 minutes ago, Ajjones325 said:

One thing I have noticed is that the start stop isn't working, I've checked battery voltage n it's reading around 12v. 

Has anyone had this issue before? 

Do a forum search on 'stop start', everyone with that 'feature' has issues! Your voltage does appear to be a little light, charging the battery should kick start the function into action, but it will eventually fail again...

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