Are there any disadvantages to using the ScanGauge II? For example, since it provides real-time data of coolant temperature, fuel economy, etc., will its continuous "talking" to your car's onboard computer cause the car's computer to operate hotter than it would operate without the Scan Gauge II continually asking it for real-time data? Any info available to show whether your car's onboard computer is more likely to break and need service with its friend, the Scan Gauge 2, always "talking" to it? Also, with the new XGauge / Add-A-Gauge feature, additional info can be displayed like transmission temperature, but *only* if the car already has a sensor to monitor it. How can I find out if the '06 Camry was built with a transmission temp monitor? Are there any other possilbe disadvantages to using the ScanGauge II with your car?