Just wanted to give some further details today.
Cleaned Air Filter (which was pretty dirty... New Service Kit on Order) and did a MAF Clean with the MAF Cleaning Spray.
Did some Testing in the National Park behind us in Kinglake here and was basically able to recreate the error under Load on Hills etc in either D or S Modes.
Only getting one error code now.
P023D-22 - Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor A Correlation
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