In other words, it does not inject fuel?, But they already checked pressure on the injector bridge and this ok? What pressure value do you have? They checked the injection pulse and this ok? They checked the rpm sensor or upper dead point? Has any reparation related lately? The catalyst is in good condition and correctly installed?
Friend Logan Taxi, this is very simple. If you have a injection pulse and you have a spark, it has to start, if you do not, control the point of the distribution strap, just that can do not turn on, if it were a spark plug or a dirty injector, it would start and have an unstable idle but start.
What you say is fine but, it is not the only thing that the engine does not start. You have to beck the fuel pump, if it has the corresponding precion, for this case there are 3 bar. Once I spent, in the same engine (K4M) that the MAP gave poor signal and did not rely. Therefore, if you have a pulse, spark, and the precion of gasoline well, you have to scan it