P0463 JEEP -

Question

I put a new motor in changed half of the fuel line. p0463 code came on. no fuel going to the injectors. put some gas in still no fuel. it wants to start if I put a little in the plenum. any ideas. whats the most likely problems

Answer 1

P0463 Fuel level sensor 1 circuit high

P0463 will not cause  a no start, the is is a fuel level circuit disconnected. You can have disconnection at the fuel pump module.which can and will cause P0463 and no fuel to the injectors,