'02 S-10 cuts-out accelerating...Egn Light On

Guys, my friend has an '02 S-10 w/4 cylinder, I guess a 2.2, and std trans. The truck idles fine but when he goes to take off the check engine light comes on and it tries to die. He has to kill it and restart it to clear it but it doesn't happen all the time. We pulled up 4 codes on the scanner but didn't want to start buying sensors...thinking one bad one could affect the others. The codes are "Pedal Position Sensor", "IAT Sensor High Input", "Crank Sensor", and "Throttle Position Sensor" Any thoughts on what to do first? Any help appreciated.