I have had and 2004 s80 since about Feb no problems until maybe about a month ago..check engine light came on it was code for throttle body.....so I checked around most places said clean if first, before I could do it I started having hesitation problems and white smoke from tail pipe, I got and oil changed then I had the throttle body cleaned also spark plugs changed (*well sort of*) one is hard to remove but air filter changed and now I am still having the same problems nothing has changed....the check engine light came back on with different codes no longer for throttle body but for P2187 "syetem too Lean at idle" can somebody please help me with this issue....also forgot to mention I have a issue with oil....I had an oil change Friday by Sunday I had to put 4 more quarts of oil in the car and oil is sitting in the pipe coming from the throttle body, so confused I keep getting different solutions from each person I take the car too.

 

Also some is coming from oil dipstick....PLEASE Help