along the inner wing near to where the filler cap is you will see a black rubber pipe with a connector
on the connector is a plastic clip, remove or try to release the clip without having to remove it fully ( it's a bit of a pain to get back on ) and pull the pipe out of the connector
you could try blowing down the pipe for a quick fix or use an airline
it will disturb the gunk clogging the filter for a while but it will clog again eventually but it works a s a quick fix
Its from the arch liner. You take the bumper off to get to front pump for headlights. Theres a good how to on here theres a small filter in the hole where the pump sits it sits on bottom of pump so this is dirty or blocked as the front pump wouldn’t be affected by this. Just take the wheel off and remove the liner you will see the pump you just unclip the electrical connection then gently pull it out the filter looks like a rubber washer left in the hole pull it out and its just a soft brush in warm washing up liquid to clean it But watch the watr when you pull the pump haha
This might help, had to do mine as the pump was blocked with what looked like a tissue (?). I also took longer than 2 hours, my little "helpers" found out it made a good water pistol when we tested it so I ended up finishing it in the dark.