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Common problem solving for the s300. Please follow all these steps.
| 1. | Download and install the latest version of SManager. |
| 2. | Check that the ECU has J12 (US) or J4 (JDM) cut. |
| 3. | Does SManager show 'Online' on the bottom left of the window when the ignition is switched on? If not, see USB troubleshooting |
| 4. | Create a new calibration from File->New, adjusted only for injector size. |
| 5. | Can SManager upload the calibration to the s300? If you can't upload a calibration, it is the ECU socketing. |
| 6. | Can SManager datalog from the ECU? If you can't datalog, then switch the on-board datalogging off, clear the stored datalogs and try again. If you still can not datalog then it is the ECU socketing. |
If you get this far, then the s300 is working correctly. Any problems now are caused by the ECU, vehicle wiring, sensors, engine or calibration.
| 7. | Start the engine. Can SManager datalog? If not, check that the plugs are resistor type and the thermostat ground is good. |
| 8. | Are there error codes? If so, find and fix the causes. |
If the datalogging stops at a certain rpm the cause is electrical interference, usually originating from the ignition system. Check that the spark plugs are resistor type and that either the distributor cap has a resistor or plug leads are resistor type.
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