what items(plastic covers) do I have to remove to gain access to my spark plugs

if you can see and reach the plugs with out removing the plastic covers you should be alright, if you cant you will have to remove them (ether unbolting or just pops off) if the cover says "ecotec" 6-8" from the oil cap just remove then oil cap and pop it off then replace the cap and do in reverse order to re install