Need help
 

My 2001 is300 acceleration sometimes doesn't work. Changed the throttle positioning sensor. But will act up every now & then. Anyone else had this problem? Or know what it could be. Thanks in advance

It's hard to make a judgement when we can't see what's wrong. I recommend just going to a good autoshop if you can't repair it yourself. Or maybe you know someone who can help you and look into it?