Edge 1030: Watt and calories wrong

Hi

I have an Edge 1030. As Sensors I have connected a cadence-sensor, a speed sensor, a heart rate monitor and the SRAM Apex shifters

NO power-meter is connected

Nevertheless the watts shown in carmin connect and the burned calories are completely wrong. For example in a cycling workout in garmin connect it shows a max power of 9343 Watts and average power of 1220 Watts. I know that I'm fit but not THAT fit! :D :D

As well the burned calories seem way to much. Same cycling workout shows 1123 burned calories but I have recorded with my apple watch as well and here I see 574 burned calories.

Any hint how to solve that?

Andreas