
I've tried this on 3 GM cars. 2 out of 3 allowed bi-directional control and real-time streaming of engine data. A 2006 GM car will not work with this live data tool, but will work with other tools. The user interface is nice, but the registry is a bit messy. The price is definitely reasonable for the controls on offer (if they work) as many similarly equipped tools cost 2-4 times as much. This is by no means store level, but a good tool for a quick initial analysis.

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