Timing setup.
http://www.plymouthlaser.com/timin.htm
Adjusting BISS.
http://vfaq.com/mods/BISS-1G.html
TPS adjustment.
http://www.plymouthlaser.com/tps.htm
Of note when setting the timing, you only need to ground the single wire on the firewall; wire goes to a two terminal plug and is likely capped, only one wire inside.
Also of note when setting the basic idle speed, you need to ground terminal 10 on the DLC connector inside the car just to the side of the under dash fuse block.
Make sure the engine is above 180 degrees when checking the timing, all accessories off.
Same situation when setting the BISS/basic idle speed.
5 degrees is base timing, you will see likely 10-12 degrees of actual with all wiring detached and the ECU compensating for atmostpheric changes (higher timiing advance) and loads.
Make sure you have 1-2mm of slack in the throttle cable, as adjusted with the two little bolts up at the back of the intake manifold.
Check to make sure you have the Idle Stop Switch grounded up on the side of the throttle body, just above the green springs that hold the tension on the throtte plate.
There is a zip tied ugly rubber boot on that switch. Confirm that when you close that switch, a test light connected to battery +, will iluminate.
If it fails to illuminate, you need to see if the little plate between the TB elbow/TB/intake manifold and the top phillips head screw is missing or not. You need a ground from the head of the rear upper bolt (the long one that goes through those three parts) to the TB so as to carry a ground path for your idle stop switch.
Also check that your engine has a little ground strap attached at one of the two bolts on the intake manifold that hold the throttle cable in place.
That wire will likely ground straigh back at a common ground point with a few other mianly black wires. It may be a black w/yellow stripe.
These are just some of the basics.
Now, what we need to know is what year and model Cyborg this is.
If you can PM your VIN, I can run it and find out what model you have via ASA the Mitsu parts search program, or you can post a picture of the outside of the car, then some underhood pics, so we know what kind of motor we are dealing with.
Also, yeah I'm coming to a close on this one I assure you .... do your sensors on the throttle body have pigtails that lead to connectors, or do the sensors have a connector that plugs directly into the body of the sensor?
Pigtails equals early model JDM/USDM
Direct connector equals later model JDM/USDM