Dodge Caravan / Plymouth Voyager Mini Van engine ECU Up for Sale is a Working, in excellent condition Chrysler minivan engine ECU. My list shows this works with most 1997 3.8 Liter 6 cylinder Models. Part number listed at the top or in the large pictures. Check the part number to be sure this is right for your van. Part number listed at top. The letters at the end of the part number (if there are any) are the software version, and not important so take this into account. The 1 lower mounting stud 95%25 of the time is broken off these units, the upper studs are in-tact and is all that is needed to securely mount the unit. This will interchange with-04727207AA04727207AB04727207AC04727207AD04727207AE04727207AF04727207AG04727207AH05017590AA04727207AIThis unit was runtested & is functional, and offers a 30 day warranty. Please be sure to double check the part number off your original unit before buying. A defective unit is one of the most common no start, start-stall, or random stalling problems with these cars. They can also be the cause of erroneous check engine lights, cold or hot start problems, or idle control malfunctions. If yours does not have problems, keep an extra ECU in the trunk, you might some day be glad you did... These units are very expensive to buy new. Thanks for looking!