My 2002 24 valve with 180 k miles through these two codes at me the other night as it shut down rolling through an intersection PCU P1693 & ECU P0230. I replaced my lift pump and fuel filter with (OEM parts) after Priming a number of times I got no result. From the sending unit to the injector pump there's what looks like a pressure sensor or regulator with two pig tail wires connected to it running to the lift pump so I grabbed/jiggled/fannessed the two wires and it started and ran so I pulled that part an nobody could idenify it or help me . I dont hear my injection pump running at the key on ignition off position but once I bump the key it pumps and it builds about 5-8 psi before cranking.