Problem:
Foxflash read Opel Astra Delco E98 ok, but failed to write via OBD, error DAT1. Any solution?
Solution:
Restart Foxflash and give 13V voltage.
Precisely reset the computer and all over again
Best for this ECU is full system.
Use the full system read function on the table and there is no problem.
Tested by many without problem on bench.
For example:
http://www.pcmtuner.org/foxflash-read-and-write-open-insignia-delco-e98/