P0102, p1133, p1126, p1128, p1130
 

My wife's Boxster S is throwing all five of those codes. It seems the common thread on here is to clean the MAF, reset, and then drive for awhile.

My question is: Is it unusual to have five codes at once?

That is a lot ! Did you check pending codes also?
Did something get dislodged during recent engine work?
check this thread:
http://986forum.com/forums/general-discussions/43420-p1128-p1130-fault-codes-advice.html

I cleaned the MAF and am down to P1133 and p1126
 

Now that i have cleaned the MAF and gotten rid of three of the codes, I am off to figure out how to get rid of p1133 and p1126

Please make it a habit of posting the model year and engine size of your car and list any mods or recent work. It will help those trying to answer your questions.

You cleaned the MAF, did you then clear the codes or did they just go away? Are the remainders just remnants of an earlier problem or are they leading to a current problem indicating MAF or fuel pressure?