Projectcam94

Finally i took my car to a shop today . Left it there for a half day and the guy couldnt figure out what was wrong. He hooked up the computer and found a sensor on the intake elbow that was causing the SES light to go on. He replaced it and it is still causing the same problem. Rpms go up and down from 500 to 1000 then back down to 500 ,600,1000,300,1200 rpms.. This happens when engine is hot (normal temp). In the morning it runs fine for like 5 min. He says he wants try and Clean the TB with Seafoam ..

My question is if the TB was dirty the rpms going up and down would happen all the time.. Not just when hot or am i wrong ?

If you all have any ideas that would b great

Thanks everyone for trying to help
-Ben