i put a new trans in my legacy along with clutch and flywheel, the setup ran fine for a day or so. Now i realized the rear reverse lights do not work, and i am getting a check engine light. Any ideas on why the check engine light, or the non working reverse lights.

Jason

There is a reverse switch that should activate the lights. It is possible that the connector is not/was not attached. Your best bet is to have the DTC pulled and find out what is throwing the CEL.

-Jon