will a bad TPS make your car run like ****?

it bogs when i accelerate sometimes, not all the time.

 

yes it will make the car run poorly. You can check the TPS by referencing the signal voltage output from it. Sweep the throttle open to close. you should see a voltage change from about .5 to approx. 5 at WOT. IF not, try replacing, thats probably the problem.