Zio Current and Voltage Sensor - INA219 (Qwiic)

Just got a Zio Current and Voltage Sensor. When I connect to it over I²C using the provided example I consistently get the same results, regardless of whether I have plugged-in my power source or the load is on.

How can I debug this?

I found the official Python package for the sensor from Adafruit and I have been using that instead of the Arduino library ported to wiringPiI2C. I am getting different values now, and the values do change when I connect or disconnect the battery, but the readings are still off. Does this require calibration?

Shouldn’t need calibration.

How do you have everything hooked up? (pic?)