Alyways annoyed that you cant find the info on how to test this stuff people never post in plain english
So heres what we had learned from the experience
Read Morenever a walk in the park with a vehicle that has 245.000kms

Fuel Trims Are Adding Fuel As The System Is Running Lean
Conduct Road Test And Found That The Fuel Trims Are Causing The Check Engine Light To Come On
Initial Repairs to vehicle
So your typical commodore having the fault light on and P0009: Engine position sensor bank 2 fault is displayed,
Read Morethe 2 fault codes present every time after we scanned this vehicle was
Engine ECU
p0850 – Park/neutral signal Circuit Incorrect.
Audio System
(fixed this one too)
B101d-3c – Ecu, Hardware Performance fault.
We have started to collaborate live data sets and possible control unit resets to vehicles as there is just too many variants in vehicles these days, and the live data at idle varies between models,