Cummins/Onan QST30 G-Drive Engine

⚠ ECM parameters cannot be changed while the engine is running.

1. Double click a parameter in the list of Adjustable Items, or highlight it and click the Edit button.
2. Edit the parameter value using the data entry field/spin box or the Default button.
3. Click the Change button to change the parameter value in the list.
4. Click the ECM Save button to save the values in the ECM.

⚠ Test can only be performed when the engine is not running.

1. Use the up or down arrows to change the position setting (auto-sent to ECM), or type a new value and click Send.
2. Read the corresponding rack position sensor voltage shown by the test.

⚠ Fault simulation temporarily overrides the engine's actual fault sensors; exit normally or sensors remain disabled.

1. Click an up or down arrow to activate the Simulated Temperature spin box.
2. Change the simulated temperature in 1 unit increments (auto-sent to ECM), or type a value and click Send.

⚠ Fault simulation temporarily overrides the engine's actual fault sensors; exit normally or sensors remain disabled.

⚠ If the PC shuts down during simulation, power off and restart the engine to reactivate fault sensors.

1. Click an up or down arrow to activate the Simulated Pressure spin box.
2. Click an up or down arrow again to simulate changing pressure in 1 unit increments (auto-sent to ECM), or type a value and click Send.

⚠ Fault simulation temporarily overrides the engine's actual fault sensors; exit normally or sensors remain disabled.

1. Adjust the Shutdown Threshold spin box to the desired test point.
2. Click an up or down arrow to activate Rated Speed Override.
3. Change speed in 10 RPM increments (auto-sent to ECM), or type a value and click Send.

1. Check the COM port setting in the User Options dialog box to make sure it is correct.
2. Check the cable connections to make sure all cables are securely in place.
3. Make sure the ECM is powered ON.
4. Try the function again.
5. If the problem persists, exit INSITE QST30 G-Drive and contact your system administrator.

Tools: Serial interconnect cable 3825183

1. Use serial interconnect cable, Part No. 3825183.
2. Connect the serial connector to the serial port on the back of your PC.
3. Connect the 9-pin Deutsch connector to the engine harness near the flywheel housing.

Tools: Serial interconnect cable 3825183

1. Use serial interconnect cable, Part No. 3825183, to connect the ECM to the NGT serial port.
2. Hookup procedures are the same as for standard computers.

1. Insert the security key diskette in the diskette drive.
2. In the ECM Setup dialog box, click either Drive A or Drive B radio buttons.
3. Click OK.
4. Type your password in the Password field.
5. Click OK.

1. Select Data Logger on the Tools menu.
2. Select parameters to log, a sampling period, and the data file name.
3. Click OK to start logging.
4. Click Start; click Pause then Start to pause/resume; click Close to stop.

1. Specify which parameters to monitor.
2. Make sure the ECM is attached to your PC and the engine is running.
3. Click the Start button.
4. Click Pause then Start to pause/resume; click Capture to log data; click Close to stop.

1. Insert the security key diskette in the diskette drive.
2. In the Move Security Key dialog box, click the radio button for the type of move.
3. Select the drive letter of your diskette drive in the spin box.
4. Click OK.