System Description: Description
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
The exhaust treatment function reduces the following exhaust emissions included in exhaust gas.
- Nitrogen oxide (NOx)
- Carbon hydrate
- Carbon monoxide
To reduce exhaust emissions, it is necessary to quickly raise catalyst temperature to the operating temperature especially when performing cold start.
NOTE:
ECM controls the solenoid actuators of intake camshaft and exhaust camshaft and determines valve overlap. Exhaust gas recirculation rate is controlled by interior EGR.
The exhaust treatment function has a control item and functions as follows.
- Three way catalyst function
- Shift performance curve control
- Catalyst efficiency monitor function