Hello, looking to change the tps and managed to remove one screw but the lower one will not budge.
Can I drill it out or is there a better way?

i had a similar issue , just drill the head off the screw and remove the tps . with the rest of the bolt hanging out use a pair of vise grip pliers to remove. i just clip them on and move it up and down in little movements, it will hopefully come loose. the theory is that it warms the screw and it will eventually come out , this can take 5 minutes of moving it up and down to loosen it, do not rush it or you will be drilling it out. every 5-minute job is one broken bolt away from a 3 day ordeal.

Many thanks if the rain holds off I will get it done today.

Success, all done many thanks.