car wont start , only have 1.4 volts at crank position sensor connecter coming from computer ,is this a bad ecm?

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Battery voltage good, cranks evenly with good compression. Cam sensors are working and triggering the injectors with good fuel supply. Coils have 12 v present but have a weak and intermittent trigger pulse using a noid light to check. Removed the crank sensor plug with only 1.4 volts when it should be 5 volts. Is this a bad ecm? Also checked the wires from the crank sensor to the ecm with good continuity on both wires .No security warning light and immobilizer is in off mode. Thank you for your time.