Citroen C3 Reduced Engine Power

I had something similar happen with my C3 (not sure about the year). It could be vehicle electronics causing the ECU to act up. Any computer module problems recently?

Thanks! Do you remember the specifics of your error? What exactly failed? I'm thinking about a system reset.

After checking the measurements they told me that the main relay was defective. Maybe go to a workshop, so they can read out the error memory and check the vehicle electronics.

Okay, perfect! Thanks for sharing your experience. Went to the mechanic, they found the ECU defective, likely due to a faulty main relay. Repair cost 120€. Appreciate the help!