We checked over his car at school today. The MAP sensor is perfectly fine, the idle is perfectly fine, the TPS needed a slight adjustment. The IAC motor checked out. No vacuum leaks anywhere that we could notice. He sprayed carb cleaner on/around the intake manifold last night and couldn't find anything either. We did a KEOR and a KOEO test, neither showed anything other than codes for the EGR and Air Pump. It's an intermittent problem which makes it more of a bitch than anything heh.