[Fred1956]

My first thought is that a -16 temp reading to ECU will start cold but should flood when started hot. IF it has clear flood mode as most do, trying hot starting with wide open throttle, it should start that way & although it would run very rich it should run. CDI does not control this- more likely a faulty OR poorly connected temp sensor, (sorry- no idea where it is located but check coolant hoses and passage ways for a sensor) or wiring between ECU and temp sensor.

You also want to make sure your buttery has a full charge :-)

I'm speaking from a basic fuel injection theory of operation standpoint so I can't help much further. Hope this helps