The WEGO III is the perfect way to ensure your engine is running at it’s full potential. Simply wire the Wego III to key on +12v, ground, a tach signal and your TPS sensor. That’s it! Now you have a onboard data logger that records engine RPM, throttle position and your air/fuel ratio. After a ride around town or on the track, connect your laptop and download the data. Now you can make adjustments to your fuel tables to keep your engine happy, powerful and running smooth.