The ECU+ can datalog a variety of values through its native datalogging and MUT-II datalogging capabilities.
With native datalogging, the ECU+ can log a variety of physical signals from sensors attached to the engine. This is done in hardware, as the ECU+ logs the sensor signals and interprets them for display. With native datalogging, the ECU+ is datalogging pretty much exactly what the stock ECU "sees" from the engine sensors. Included in the native datalogging is the following:
Don't confuse the ECU+'s datalogging with other cheap "logger" devices on the market. Most of these use the OBD-II port and datalog at much lower rates and much lower accuracy than the ECU+. The "trick" that these devices use is to quote high datalogging rates of one parameter. When you datalog two parameters, the rate drops by half. When you datalog three parameters, the rate drops by two thirds. And so on. The ECU+ datalogs everything at 25 samples per second. Additionally, the accuracy of these OBD-II port loggers leave a lot to be desired. For example, engine RPM is typically no finer than 32 RPM - with the ECU+'s native logging, you get 1 RPM accuracy.
In summary, if a "logger" uses a simple cable to connect to the OBD-II port under the dash, fuggetaboutit. You'll just be disappointed.
In addition to the above, the ECU+ also logs:
In addition to the above, the ECU+ includes six 0-5 volt analog inputs (four currently used) that can be used to datalog any arbitrary voltage from another sensor or aftermarket device. The ECU+ comes pre-calibrated for a number of aftermarket devices, and can use these analog inputs to datalog:
The ECU+'s native datalogging is both fast and accurate. The ECU+ datalogs all of the native values, in parallel, 25 times per second. With the ECU+'s native datalogging, there's no slowing down of the datalogging rate as you add more parameters - everything is logged, all of the time, at 25 samples per second.
Datalogging data is displayed in real time to a laptop with the ECU+'s Windows software. Saved datalogging files can also be analyzed offline with any Windows PC. The ECU+ Windows software makes analyzing the captured data a breeze - values can be zoomed, compared and analyzed to determine the best fuel and timing values, and a street dyno feature can even estimate raw engine horsepower and torque. If that's not enough, you can export your datalogs to a Excel-compatible "CSV" file for further analysis.
The ECU+'s datalogging capabilities are second to none. Unlike pretty much all competing products, the ECU+'s datalogging and analysis software isn't some add-on hack job. It's a custom designed software package that integrates perfectly with the ECU+ hardware for tuning and datalogging.