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What is the model of the engine?

What is the model of the engine? Is it the usual VQ35DE?

The NDS II software works with ecus that use k-line for diagnostics. Your BCM is using CAN bus for diagnostics and that's why you can not connect to it. You should be able to connect to your BCM with the NDS III software.

Not all BCMs support these functions. Some BCMs don't even support the encrypted immo pin function.
If the function is greyed out it means it's not supported by the BCM.

It does look like something is pulling the timing. Quite possibly the detonation sensors.
Do you get any fault codes?

When the NDS II software connects to an ecu it checks which function the ecu supports. If the function is greyed out, it means it's not supported by the ecu. The ecu can disable a function due to some fault or the function is not supported by the ecu at all.

It depends which parameters your ecu supports. Most probably:

- NB Sensor 1 bank 1
- NB Sensor 1 bank 2
- NB Sensor 2 bank 1
- NB Sensor 2 bank 2
- A/F Alpha b1
- A/F Alpha b2
- A/F Alpha b1 stored
- A/F Alpha b2 stored

Have a look at this video.
https://youtu.be/UkPSA0NuPZo?si=kFbYhskBMbz_l0sz

Under Settings->Communication disable the Auto option next to the COM Port setting. This way the software will not try any other Com Ports and fail immediately if there are any issues.

In your Windows Device Manager, what is the Device Status for your adaptor's Com Port?

1. Connect to the ecu you want to monitor. ECM for example.
2. Select ECM from the top menu then Data Display Settings.
3. Select the parameter you want to monitor for each gauge.