Sorry to bump an old thread.
To anyone who's still wondering whether there's a solution, the short answer is "probably yes".
TL;DR: You can probably replace the SRAM on a genuine Pokemon Gold cartridge with an FM28V020.
The main reason, as stated by qwertymodo at #11, and by BennVenn here, is...
@Maximumbeans, Indeed. I've been working on getting this Infecutus chip to work on my PS2. But after soldering, I realised that a plastic piece was missing from the power ribbon cable to the power and eject buttons.