engine swap problem

[solojdm]

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?

 

[weeJohn]

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.

 

[solojdm]

circuit opening relay is energized correctly.if there is no cranking signal to the ecu it wouldn't be a spark at the spark plugs am right or not?

 

[weeJohn]

circuit opening relay is energized correctly.if there is no cranking signal to the ecu it wouldn't be a spark at the spark plugs am right or not?

ECU tends to cut fuel, not spark, but to be honest I am not 100% sure in the starting case.

 

[solojdm]

nvm thanks for your help