Idle and bogging problem!!

[nadim]

hey guys iam having some problems with my car last time a filled the gas tank i am running hiboost kit 1.6 with the haltech f10x the car was doing great until last refill of gas i dont use the car often too ,the problem is at al low rpm is like running lean the afr gauge goes to 15 and 16 and a bogging sound of the engine and when i hit the gas it clears to 12 and 11 back and the engine seems to run normally again but when i stop and dribe again it does the same so what u think it might be!!!
thanks

 

[nadim]

yesterday while searching for the problem i found that my maf sensor was missing a bolt and it was loose so fixed it but the problem stills at wot it is runnig great it is just sometimes when iam gona hit the gas tha cars bog and goes lean to 14 and 15 on the afr ,DOES A VAC LEAK causes this??
need some help thanks

 

[nadim]

bung

 

[nadim]

problem solved it was the spark plugs but i put the car to stock again iam going to get a CX9 gran touring instead .