How much is it to fix the turbo on a 1998 mitsubishi eclipse?

Check throttler pedal and cable for stuck position

your distributor where you put back on is 180 degrees off fix that and it should start.

it depends on the turbo. generally you need to change the manifold to one that has a t3 flange, change the down pipe to one that matches up to the turbo, plug the oil feed to the turbo and run a new one (usually off the head or T'd into the oil pressure sensor, if the new turbo doesn't have coolant ports you need to plug the coolant lines that went to the old turbo, modify the intercooler piping off the turbo, you may need a different intake tube, and if the new turbo doesn't have a internal wastegate you will need an external one and the manifold will need an external wastegate flange.

You have an electrical short to ground on that circuit , do you know how to test automotive electrical circuits using a DVOM - digital volt ohm meter ? How to read a wiring diagram , so you know which circuits to test ?
What fuse ? number an amp

this link has a step-by-step DIY for changing the timing belt on your car. 2G TURBO TIMING BELT PROCEDURE

this link is to a step-by-step guide for installing the timing belt. 2.0L NT TIMING BELT diy

if your car is the 2.4L non-turbo let me know and i'll post up the procedure for that motor.

Have you changed the spark plugs and fuel filter yet?

Its built in to the mass airflow sensor.

Its just one bolt in the center. there is usually i panel in the wheel well that you can take off to get to it real easy. I always use a repair manual from autozone. it tells you what to do step by step.

for all models except (2.0L non-turbo AT)

• check the Vehicle Speed Sensor (VSS)