2000 maxima idel problome. Please Help!!
 

I just got a 2000 Maxima and when I got the car it would only start with when you pressed the gas pedal all the way to the floor and it idels like crazy up and down until it warms up then when warm it stays up at like 3 grand and when you rev the car it cuts out at 3500 I had a scan tool on it and it read. - ignition control switch - and - ETC motor power - I was told it could be tps I adjusted it and it kinda helped but still idels like crazy. Don't know what to do any help would be appreciated!! thanks!