Car running rough intermittently?

Hello,

Yep, you got that right, the throttle body is bad and needs to be replaced.

P0221 - Throttle Position Sensor (TPS) 2 Performance
P2135 - TPS Correlation (Sensor 1 vs Sensor 2 mismatch)

Here is the location of the throttle body and how to change it out. You can try ebay to see if they have a used unit, I have had good luck with used parts from them. Clear the codes once the job is completed. Check out the images (below). Please let us know what happens.

Could I use a ratchet wrench on it or would I need to purchase a drill to torque it off and on? And how do I determine if it is single row or dual row injector?

It looks like 4 - 10 mm bolts, I would use a socket, also this car has single row injectors. let me know how it goes.

Thanks! I went to get the part at the store and didn't know which one to get. The gentleman at the shop ordered a single row one for me since they only had double row ones available!

Okay, sounds good, let me know how it goes.

I'm getting a mechanic to put it in. If my car needs move than the throttle body I didn't want to be stranded at home with no way to get more parts I might need.

Yep, I hear ya, let me know what the mechanic says.