OK i had a code pop out on my 2001 Toyota solara 2.2l 4cyl and i looked it up online and its gave me some solutions and i have did all i could i have changed the egr valve and changed the vsv sensor and the changed the vacuum silionod and after i clear the code and drive it for a while it pops back up so i unscrewed everything and took of the intake cleaned it and all the sensors too. the code still pops out can anyone help me? am i missing something and all the hoses are fine.