How to use a Durametric OBD reader on a Boxster.

[elgyqc]

If you clicked on the link thinking you would find all the answers... not yet.
I have started to get serious with my Durametric, but am struck by the lack of information available.
There are some introductions, but they don't go very deep, two that I have looked at recently are these.
https://www.youtube.com/watch?v=Caw9xWiIoE0
https://www.youtube.com/watch?v=0sYoIbkjOz8

A longer introduction from Jake Raby https://www.youtube.com/watch?v=e5YgEiQsuck

What I would like to see is details of how to do specific researches.

The above video by Raby explains how to verify the cam deviations.

On my 2000 2.7l I recently checked the fuel trim by selecting the following in Actual Values:
* RPM
* Hot film MAF
* Actual angle for camshaft bank 1
* Actual angle for camshaft bank 2
* Mass air flow
* Adaption range 2 (FRA) bank 1
* Adaption range 2 (RKAT) bank 1
* Adaption range 2 (FRA) bank 2
* Adaption range 2 (RKAT) bank 2
Which gave the numbers attached to this post and which seem to be good.
Trying to understand fuel trim... HELP

I am now going to try to check the O2 sensors and the ignition timing... will add that information as I go.

I invite others to add their own tests and results. I need to understand how to read the results of the test, what are the allowable limits and what does it mean when limits are not met or exceeded.

For example I gleaned this while looking through a post:
"You can check the MAF voltage with your****Durametric
Should show 0.9 volts - 1.1 volts ...with key on engine off
1.2 volts - 1.5 volts engine running at an idle"