Hey, I have this problem with my Daihatsu Ute, it idles to fast now it's been idling faster and getting worse over the past few months now it's not the idle adjustment because that's completely unscrewed and the butterfly seems nice and secure in the air intake manifold the only thing I could think is it's the fuel pump or something related.

Another thing I really know nothing about this vehicle I own but I hear it's pretty rare, i'd really like to get a workshop manual for it..

Here's a Picture.

I'm in Australia by the way.

thanks, Josh