well....just like the title says.....i recently swapped ecu's for a quick run to see what kinda tune was on another ecu... well..i swapped ecu back with my original and now my car doesnt run right....well no check engine codes but more like it feels like its still running on the other ecu still....i disconnected the battery, popped out bother ecu and back ecu fuses and took the main relay out for about an hour...put it all back together and same issue....any ideas?