I found a picture of my car....
Underneath the funny looking resistor/diode is the shottky diode that came with my hara twister 2.1 ...
When I look at the component I circled in red, I think its a resistor and it came with my s4 capacitor. I cannot read japnese instructions, I am not sure why its there, but the store owner in HK told me to solder it parallel to my shottky diode.