I have noticed when resetting P0430 that if I use my 2 top of the line actron scanners to reset the codes and pending codes, it does not last as long as a disconnected battery reset. I can get about 2 weeks before the light comes on with a battery reset, 1 or 2 days with the actron. Any ideas why? I am thinking of using the o2 spacer to deal with the P0430 code.