Changing the tps sensor...?

First if check engine light on need to get computer trouble codes checked for any sensor problems. You could have an auto. trans problem, which also has computer. Other possibilities fuel filter needs replacing or intake plenum needs cleaning or possible vacuum leak. Also could have bad idle air control valve IAC. Suggest a Tech check it out for you so Unc. doesn't have you replacing parts you don't need, your wallet will get thin fast.Not trying to be a bummer but cars are now a lot more complicated with everything electronically controlled.