Anyone have any knowledge on tuning these, i have the cable, software, and some documentation on it but the power writer just says communication error no matter the config I try. I've tried with dip switch 8 on and as my F-Con has 2 rj12 ports I tried both. First green led is illuminated when trying because I have the ignition turned on as I believe it is supposed to be.
​​​​​​If anyone has any ideas or experience that would be great to hear.

 

I myself love HKS Fcon! All my cars are on FCON, even my Cosmo 20B.

For the silver version, you first need to share the serial number to understand what you have, + the software version you use to read it.

There is a common misunderstanding for the FCON being a piggy-back, that is partly true, but many (all gold versions) can be used as stand alone. Also, the silver Ver2.1 can be used as stand alone in some cases, but none of the silver versions before, hence the version is important here.

Best,
Iwan