This is it guys. :o I think I have found an answer. I am using Atmega 328P in a race data logger installed on a go-kart, due to the kart size it can not be moved far from an engine. I am having problem with constant Arduino resets (see here Arduino Randomly Resets - adafruit industries
My three inputs which connected to sensors external to the box a already have low-pass filters, but resets still occur.
After reading this topic, I am suspecting the RESET pin to be cause of this, so EMI resets the processor via reset pin.
I didn't quite understand the point 2 of the first post, how to protect the reset pin from EMI? Would directly connecting the reset pin to Vcc help?
Secondly, is there way to completely disable the reset function?