i cant say anything about the vats but i had a similar problem with my setup. if i was not running the oil pressure sensor it would not send signal to the fuel pump. it would start then die off. on the firewall on the passenger side under the black cover. or power block their is a fuel a pump relay which which you can power up or there is a fuse to, that i believe if you power up the brown wire it will send constant voltage to the fuel pump. you can test this to eliminate if its a fuel problem