Anyone know if the Mk1 Toyota yaris d4d as a low pressure fuel pump. Reason I ask is I have had a P1229 fault code i have checked and tested the fuel pressure sensor and regulator. Fuel filter was replaced. I had a look at my fuel tank sender thinking it had a low pressure fuel pump cylinder and to my surprise it didn't, also when I removed the fuel pipe from the fuel filter feed fuel just dripped out when ignition was anitiated.  If no low pressure fuel pump exists how does the fuel get from th