This E.C.M. fits the following vehicles: 1995 3.1L Chevrolet Lumina. This auctìon is for one service number 16196397 ECM (Engine control module) that is programmed for your vehicle using the latest software updates using your V.I.N. (Vehicle identification number) to exactly match your vehicle. After you purchase the E.C.M. you will need to provide us with your V.I.N so that we can program the E.C.M.There is no core charge you keep your old E.C.M.. You can pay instantly with . We use Alldatapro for our repair information. If you need diagnostic information please let us know and we can help. We are also a member of IATN (International automotive technicians network) a valuable resource of auto repair information. Same day ping if ordered before 2:00 P.M. EST (Mon. - Fri.) We do not use or access to program this computer.