Materials and tools:
* Nissan Consult diagnostic scanner
* Multimeter
* Screwdriver set
* Set of keys
Throttle valve adaptation procedure:
1. Make sure the engine is cold.
Allow the engine to cool for at least 15 minutes before starting the procedure.
2. Connect the Nissan Consult scanner to the vehicle’s OBD-II diagnostic connector.
3. Turn on the ignition, but do not start the engine.
4. Select the Adjustment option in the scanner software.
5. Go to the «Throttle Adjustment» section.
6. Follow the instructions on the scanner screen to begin the onboarding process.
7. The scanner will display the throttle position value.
8. Using a multimeter, check the voltage at the throttle position sensor connector.
It must comply with the specifications in the service manual.
9. Loosen the throttle position sensor mounting bolts.
10. Slowly rotate the sensor in one direction until the throttle position reading on the scan tool reaches 0.3 V.
11. Tighten the sensor mounting bolts.
12. Reset adaptations by disconnecting the battery for a few minutes.
13. Reconnect the battery.
14. Start the engine and let it idle for 5-10 minutes.
15. Turn off the engine and wait 1 minute.
16. Start the engine again and check if it idles normally.
17. Repeat the adaptation procedure several times if the engine still runs unstable at idle.
Please note:
*If you are not using a Nissan Consult diagnostic scanner, it is possible to perform the adaptation manually, but this is a more involved process and is not recommended for inexperienced users.
* Throttle adaptation should be performed whenever the vehicle has been idle for a long time or any work has been done on the throttle.
*If the engine continues to idle rough after adjusting the throttle, you may need to replace the throttle position sensor or perform advanced diagnostics.