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987.2 Cayman S - Durametric Codes? Help pls.

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I need to get some advice please -- I've got the following codes by Duramtetric coming up on the PC:


1800 - Position of Crankshaft (Intake) - Upper limit exceeded

9722 - O2 Sensor Bank 1 dynamic Response too lean

7101 - Lambda Control Adaptation bank 1 system too lean upper limit exceeded

9521 - Signal too rich (o2 sensor ahead of cat) bank 1

9721 - Signal too rich (o2 sensor ahead of cat) bank 2


The throttle is a bit out of whack sometimes power is down and CEL is on.. 


I thought it was a Cam Angle Sensor issue -- but there are two of them? Is it likely the Inake side? 


Assuming this will fix the O2 sensor issues as well .. 


Thanks in advance.

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