General Topics for configuring, operating and tuning the Megajolt. Also see the <a href="http://www.autosportlabs.net/MJLJ_V4_Operation_Guide">Operation Guide</a>
I assume that if I want to upload two maps I need to wire the options switch. When connected to the computer if I flick the switch it should then display the other map...
Yes ...
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If you check Enable Dual Ignition Config on the Tools|Global Controller Options menu item
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and
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If you set When Ignition Config Switched to be "Auto-read configuration" on the Tools|Configurator Options menu item