Massimo 550L no fuel injection or sound

[Jerod]

When I first bought the Massimo 550L, everything was great until we stopped in the woods and it just wouldn't start again.  When the key is first turned and the kill switch is on, you hear a magical sound that tells me the fuel injector is ready to go and may have put fuel in the start process.  The same sound happens with my ducati motorcycle.  When it wasn't working, the sound never happened.  They after fooling around with the electrical harnesses, etc, put a new fuel injector on, it worked.  Fastforward 9 months and the same thing is happening.  It started this morning Nd the magical sound was there before I started the engine.  Later in the day, no magical noise.  Can anyone provide advice?  Thanks

[Rustynutzz]

Something similar happened to mine.  Ended up being the relay.