FixVault

System Description

Sensor

Input signal to ECM

ECM function

Actuator

Camshaft position sensor (PHASE)

Crankshaft position sensor (POS)

Engine speed

Heated oxygen sensor 2 heater control

Heated oxygen sensor 2 heater

Engine coolant temperature sensor

Engine coolant temperature

Mass air flow sensor

Amount of intake air

The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.