2000 supra lunch speedo help

[bigdawg]

hey just bought a 2000 lunch and the speedo is off any one know how to adjust it and the trim guage dose not work do theses pumps have a sending unit or what

[bigdawg]

ok crawled under the dash and the tubes going to the speedo box have been y into one and it is puged into the port labled primary and the port labled secondary is left open is the correct