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.
ECM constantly monitors engine speed to protect the catalyst from excessive heat load resulting from an misfire.
ECM performs smooth running control according to the following sensors and signals.
- Pressure sensor downstream of throttle valve (Engine load)
- Intake camshaft position sensor (Intake camshaft position)
- Exhaust camshaft position sensor (Exhaust camshaft position)
- Engine coolant temperature sensor
- Accelerator pedal position sensor (Accelerator pedal position)
- Crankshaft position sensor (Engine speeds)
- ABS actuator and electric unit (control unit) (Each wheel speed signal)
The smooth running control has functions as follows.
- Misfire detecting function
- Misfire counting function
- Factors of smooth running control