Hi there. My brake and throttle have started to spike slightly so I've read that its possible to fix it by cleaning the pots but I can't find any proper guide on how to do it so can anyone help me? I would greatly appreciate it if you could include pics so I know what to look for. Thank you.

Remove the pedal plates then remove all the silver screws from underneath, carefully take the 2 pieces apart (there is a wire routed in the top half)....then using either WD40 or a contact cleaner squirt in the little gap on the side of the potentiometers....it helps to have some absorbent tissue. Work the pedals and give it a few more squirts then you should be done.
Alternatively you can dismantle the pedals and remove the pots and take them apart...but tbh unless they are full of junk you wont need to.

Thanks for the advice Anthoop but I've read that using WD40 is a bad idea.