bmw 116i running poorly :(

[adamhorton1991]

I have a bmw 1 series 116i 2012 plate with 91k on the clock ive notice lately there is a slight miss fire / jerking when driving when cold but there is no codes showing for this. also ive notice the fuel consumption is creeping up a little even when driving in eco mode it says im doing 33.5mpg but doesn't seem right to me or maybe im over thinking the mpg a little, I was using a lot of oil at one point but I changed the oil and put some in from bmw and its been alright since fingers crossed
any suggestions on what to check and were to start I have some knowledge of mechiancs but not in a great technical detail
many thanks ADAM

[adamhorton1991]

Forgot to mention i plugged it in to computer just before xmas and found these codes 

 

[Greydog]

Welcome Adam

Check the in-let side for any vacuum leaks a perished or split hose can give the symptoms your seeing, then check all electrical connections unplug give a good squirt of electrical contact cleaner (not WD40) clear down the codes and see where it takes you.

Dave