i have a 98.5 audi a4 quattro avanti with a 2.8 litre 5v engine it is idling at 400 rpms and has no power so i had it scanned and it threw 5 codes 1 was intake air temp signal too high 1 was engine coolant temp sensor 1 was throttle valve controller 1 was throttle body and 1 was power supply terminal 30 i know my cars well but not audi`s and i don't have a book does anyone have a book or can send me a wiring diagram for the sensors i don't know exactly where these sensors or where this power sopply terminal 30 is can someone PLEASE PLEASE help me out im pulling my hair out!!!!!!!!!!!!!!!