TD5 Won´t start

My 1999 TD5 Does not start i cleaned the earth points underneith the drivers seat to the frame and the gearbox as well as the ecm earthpoint.
The Ecm is now new and i fitted a new cranksensor. The fuel pressure (mesured in the regulator) is 3.9 bar and i am able to controll the injection jets individiually with the nanocom.
While cranking via the starter the cranksensor reads 220 rpm (is it true that 250rpm are required for the ecu to start injecting fuel?) is there a way to see if the ecm is opening the injection jets while cranking with the starter?(Nanocom) that would be perfect since i could stop looking for fuel related problems
The filterhead is also brand new including all valves :/


I hope somebody can help i dont know what to do

What voltage have you while cranking

johnlad said:

What voltage have you while cranking

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It fluctuates a lot... But very low... Starter is toast? Between 3 and 5 volts while the starter is turning

If the ecu doesn’t see 10.5volts while cranking it won’t fire the injectors.

Have you tested the battery

johnlad said:

Have you tested the battery

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I changed it to another one and it seems to be better but still under 10.5