MY2000 Boxster S info

[robbiez]

I just became a new owner of a used Boxster S.

Thanks for the replies to my previous post.

The car seems pretty tight but I have a few codes that are set, apologize for my lack of experience with these flat 6 engines but I would like to try to sort them out myself if at all possible.

P0102-Mass air flow sensor, I have heard these can be cleaned before you buy new, What should I use?

P1126 and P1133 are both oxygen sensing adaptation, lower load banks 1 & 2

Since there are 4 O2 sensors, Which ones are these?
I cleared the faults, if they come back should I replace the o2 sensors? I don't think these can be reworked.