The MIL light may be interesting to you guys running AIM or any other advanced racing gauge clusters.
Basically now after some tweaking with
ecueditor.com you can hook up a bright LED to your gauge cluster wire and run it in FI light only mode. It operates the same way (starts to illuminate) when an DTC/FI errorcode is detected. It turns off when power is turned off - but the best thing is that the errorcodes that turned the FI light on are stored in the ecu memory and can be read and cleared afterwards with e.g.
ecueditor.com or Suzuki SDS unit - even when the power has been off from the engine for a while.
http://www.activeboard.com/forum.spark?aBID=99460&p=3&topicID=37242894