Ok guys. This car has been nothing but problems since I got it. I have gotten these codes before and I cleaned the TB and they went away. These codes only showed up when I floored it. Well tonight I was cruising along the highway and bam. Failsafe engine mode and these 2 codes popped up. It kept on going into failsafe engine mode. I could not keep going for longer than maybe a mile and it would go into failsafe engine and these codes would pop up. Any help? 2005 mustang gt. I replaced TPS and throttle body actuator motor already... am I left to buy a new TB? Also how do I check tps voltage?