I know that the s200 unit is connected to the 4 pin data header in the ecu in addition to the eeprom chip. Crome also replaces the entire 28pin EPROM chip.
S300 is different again, but I have no experience there.
So to change from s200 to crome, just unplug it from the data port and replace the hondata eprom with crome one
Last edited by stocky; 17-01-2008 at 01:57 PM.
Reason: bad wording
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