[Fud]

Did You ever find out what made your OBDII to regester the P1128 code?
My 2000 Boxster's CEL came on and the scanner showed codes P1128 and P1130. This is both O2 sensors. I reset it and about a week later it came on agine showing the same codes. I ran some injector cleaner throught the system, checked for intake leaks using carb cleaner and checked the fuel cap. It was ok for about another week, but the light came on again.
Any other ideas??

Thanks fud