TuneBoy Diagnostics

Virtual Dash

The diagnostics program has four screens, the first screen provides a virtual dash, this displays data such as RPM, throttle position, engine temp, air pressure and build related info like the VIN, build date, last serviced date and the base tune loaded in the ECU.

The virtual dash has a button to reset the closed throttle position and a + and - button to allow adjustment of the Idle fuel trim (commonly referred to as CO adjustment).

Sensor Data

The second screen on the diagnositcs program is the sensor data screen, this screen shows all the current sensor info from the ECU, this includes injector pulse time, ignition timing temp sensor values as well as sensor voltage readings. This screen can be very helpful in tracking down a sensor or ignition coil that is starting to fail.

All of the data and buttons on the virtual dash are also on this screen but are shown in text form rather than as a guage.

Error Codes

The error codes screen will list any errors that the ECU has detected, these are shown with the problem code Pnnnn and a line of text explaining what caused the error. Current running info at the time of the first error is displayed in the freeze frame data at the bottom of the screen.

The clear all errors button will clear the errors from the ECU and turn off the malfunction light on the dash of the bike. If the problem still exists then the light will come back on and the error will again be logged.

The refresh button will refresh the error list, this can be used to see if an error has come back after being cleared.

Test Modes

The last screen is the Test Modes screen, this screen allows you to start the system tests in the ECU, for example the thermo fan test will run the thermo fan for a number of seconds allowing you to check that the fan does not have a fault, other tests include the idle stepper motor, purge valve, rev counter and the fuel pump.