Check engine, PSM, and ABS lights

[azcarguy3k]

I have a 2002 Boxster S, 6 speed, 75k miles. My check engine light is on, I went to Autozone and they read code p0430 which their computer showed is related to the cat, or a vacuum issue. My PSM and ABS lights also come on after a few minutes of driving, but never when I start the car immediately. Any ideas on whether I have two separate issues or if there could be some connection between the two? I read on this forum that the PSM and ABS lights might be related to a bad or dirty MAF, so I pulled it out and cleaned it using MAF cleaner but it didn't seem to help. Any ideas? Thanks.

[Loren]

P0430 45 TWC Conversion, Bank 2 – Above Limit

Possible causes:

– Catalytic converter

If an aging oxygen sensor is recorded in conjunction with a fault in the TWC, a check must be performed with a new oxygen sensor to see whether a TWC fault is still indicated.

Make sure you do not have other faults.

[RFM]

A defective MAF sensor can't recover by cleaning, only a dirty one at best. ;)

[azcarguy3k]

I don't have any other faults and I went back to Autozone and had them erase the code. The ABS and PSM lights still come on, but the check engine light does not. Is the oxygen senser the likely problem? Thanks again.