Help
 

Would u know where I can get some specific instructions on how to change a headlight on a 1987 (2nd Gen) Rx-7

Also, can u tell me where the TPS is on this car & how to change it?

Thank you

Easy way to do this is buy a Chilton's or Haynes manual.

The Haynes Manual is definitely a big help. I am sure you have the flip up headlights if you have an 87. What you should do is set it so that your headlights stay up. You should see screws on both sides of the plastic panels surrounding the lights. Unscrew those and those panels will lift out.
You will then probably see screws above and below the actual headilights, connected to a bracket. Unscrew those and the headlights should pull out with a big plug connected to the back. Simply pull it out, replace and put the screws back in their original place. Hope this helps.