Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
2014 Mazda 3 2.5 automatic stumble while driving. no codes. pulled a spark plug out. in need of new plugs and valve cover/ tube seals. spart plug tubes had oil in them. also noticed the oil level was over full and smelled like gas. changed oil and filter. spark plugs and valve cover gasket. anyone seen this issue before?
It's possible that you have a leaking injector or if it is a direct injection set up, your HPFP is leaking and filling up the crank case. What are your fuel trims looking like?
