starting 4efte but it only crank and there is spark at spark plug but no injectors pulse.fuel pump is good and there is a pressure on the fuel rail.what can cause the ecu to not inject fuel?
Signal and earth comes directly from the ecu, ecu also needs the cranking signal to show the starter is running. Is the fuel pump relay energised? You can test the fuel pump is running by linking out B+ and FP connections in the diagnostic plug, with the ignition switched to IG2.