I have a 1998 Lexus lx470 and have drove it about 5k miles no issues, recently had a extra key cut and programed it worked to start etc, drove it about 50 miles since new key, (I'm still using the old key just wanted an extra key) drove it home the other day parked all good, then about hr later needed to leave again and no start, first thing i did was check for fuel not fuel when turning over, so figured the fuel pump went, bought a new delphi pump and replaced it, still no fuel, then hooked to obd2 scanner and no communication? checked fuses, all good? any ideas?