Originally Posted by tom2112
Did you ever resolve this?
I've been getting it too. P0505 and P0507. It seems to only come up when I start the car and let it idle for a few minutes. I clear the code, and it goes away. I haven't had any trouble with the car, it seems to run fine.
Who's tune do you have? When did it start?
i only got the p0505 ,, It started after i got the let tune ,, not saying that is the cause ,,, i took it to a dealer and they said i need a throttle body,,they replaced the throttle body ,,i still get to code about every 150 miles of hard driving (I only drive it hard)