I could never figure out what caused the error, unfortunately... I ended up getting a set of Bosche replacements at high cost from Advance Auto since my car wasn't running well with the generics.. . I think it may have something to do with the 2.5.5 DME running the 2.5L engines.. According to this thread, it's all the newer people who have had success with these cheapies...
If anyone wants to by the cheapies from me, I'm sellin' em for $100 shipped, less than 300 miles on them.
Good luck with yours