hi there i have had a worsening idle problem with my car and was checking over my car yesterday and found that all my spark plugs were loose ...i mean real loose i just put the spaner on them and they came loose .. i had them replaced 6 months ago and the idling has been getting worse ....wat do ya think ????

any idea on the cooerct gap the bopok says 1.0-1.1 mm the bonnet says 1.3-1.4 mmm its a au2 xr6 vct