this specifies how to wire it to emanage, but it's useful by itself as a reference for the map sensor pin out
http://gurov.us/turbo/GM_map_sensor_to_emanage.doc

04 turbo @ 14 psi -
MegaSquirt-I standalone - unit #0 (fuel only mode), gsquirt board v1.0, Pivot 3 Drive Throttle Controller,
J&S UltraSafeguard individual cylinder knock suppression system, Autosport Wiring Engine Harness
660cc msd injectors, 255 walbro fuel pump, JGY fuel rail, t3/t4 57trim, Coolingmist Varicool Progressive Alky controller,
Shurtank with 150psi alky pump.
05 automatic se-r: upcoming turbo project
04 BMW 325xi - daily driver