Perrin PWI-1. Will not put out more than 250cc. IDEAS??

[zapo]

I did get the new flow sensor today. I installed it, but my low flow light is still on.

The old sensor was rated to flow 100-450 ML/min. The new one was 100-1200 ML/min.

Both have a .5-4.5 volt output, so I assume the new sensor would put out less than half the voltage at 450 ML as the old sensor. I don't think that can work.

Help.