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Hello Armylife,the ECM must be reprogramed at the Mitsubishi dealer,the factory tool must be used . You may find you still have a no start problem after it is done,since you had a code for a crank sensor and replacing it didn't fix the problem. That is the problem with going to Advance or Autozone and having a scan done, they pull a code that indicates a part ,then sell you the part. The correct way to do this is to get codes,then follow the chart for that code. It will have you test wiring and connectors before installing a part. We see this all the time,a few parts have been installed,then the car is brought to the shop,only to find a broken wire somewhere. I hope this answer will help get you back on the road,jerry.