Ron,
Get the MS3.00 main board and the MS2 processor. All the stock sensors that are on the motor can be used except the TPS which should come with the cable type LS1 throttle body.
If the motor is stock or near stock I can send you the fuel and spark tables to get you running - you'll need to fine tune them a bit.
If you get the stock fuel/ign harness for the 4200 and make a nice box to land the rest of the harness that doesn't goto the MS box it'll be neat an tidy. Check mouser.com they carry 95% of the delphi connectors! These are basically connections that need a fuse inline e.g. coil packs or injectors on the 12V supply side. 90% of the GM PCM (and most other EFI boxes) outputs use active ground switching meaning to close the circuit e.g. spray fuel, that control output puts the wire to ground via an electronic switch that the PCM/MS controls on/off.
Would be nice if you took picturea and write a story to go along with the pix to help other folks along that may be scared off of the electrons....
The latest MSextra BETA s/w has the fix included for the GM crank trigger. When your ready to connect the MS upto the coils let me know and I'll give you a detailed how to. The MS mainboard needs a few extra parts added to do the job. Cost is under $5 for the parts.
Marc
Last edited by efi-diy; 03/18/09 10:36 PM.
