07 f 150 wont start

07 F-150 wont start...

What type of bypass did you use?  Are there any dash security type lights on?

Im not sure, the auto-starter was installed before i Bought the  truck, no security lights that i can see are on...

The was running when i turned the key back and removed it, the truck kept running, i re-inserted the key to turn off the engine, the truck wouldnt start after that...

How did you turn off the Omega Mars remote start unit?  Did you pull the fuses? 

Check under the dash for a bypass module.  It might be powered independently from the remote start and still on.

I would try pulling the fuses going to the Omega Mars unit first.  Also look for the bypass module.  Typically it is another slightly smaller unit that has wires going to the remote starter and the ignition switch area. 

I am not familiar with the Omeaga units and their wiring or capabilities.  The are a lot of different bypass modules for your truck, even a "key wrap" is possible.

They problem could even be something like a fuel pump power cut relay controlled when the remote starter is locked  that has gone bad / become disconnected.

But what I cant figure out is why this happened all of a sudden...is it possible I put my truck into some sort of "safe mode" or anti-theft mode?

Or do these kid of modes even exist?