Idle Air Volume Learning: Description
WARNING: This page is about a different car, the 2018 Nissan NV3500 HD and 2018 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Idle Air Volume Learning is a function of ECM to learn the idle air volume that keeps engine idle speed within the specific range. (For details, refer to Work Procedure .) It must be performed under the following conditions:
- Each time the electric throttle control actuator or ECM is replaced.
- Idle speed or ignition timing is out of the specification.