Hello everyone,

I have bit of a problem with my 97 Grand Prix SE, when I bought the car back in September and took it through inspection it gave a code saying that I need a Throttle Position Sensor. However; I have had three diagnostics done at my local parts store and it is only throwing a P0441 code. As for that code I replaced the Purge Solenoid and had it retested and it gave the same code. I see that the rubber ends are pretty raggedy, so I bought some vaccum rubber and put it on, but haven't had it retested yet. The car drags when accelarating and doesn't change gear as it should unless I really "put the pedal to the metal" and the transmission fluid is at the right level, but gas is consumed badly. I have bought the TPS, but have not changed it out, so my questions are: should I change the TPS even though it's not showing up, and what tool would I need to remove these two screws? The screws are circular with something that looks like a pin in its center(or my glasses deceived me), it's hard to describe... I tried the torx bit that I have to no avail.

Thanks In Advance