Mirage L4-1468cc 1.5L SOHC 12 Valve (1996)
Oxygen Sensor: Initial Inspection and Diagnostic Overview
Hint 1: The exhaust gas purification performance will worsen if there is a malfunction of the heated oxygen sensor.
Hint 2: If the heated oxygen sensor output voltage deviates from the standard value even though the results of the checking of the heated oxygen sensor
are normal, the cause is probably a malfunction of a component related to mixture control.
[Examples]
1. Malfunction of an injector.
2. Air leakage into the intake manifold from a leaking gasket.
3. Malfunction of the intake air temperature sensor, the manifold absolute pressure sensor, or the engine coolant temperature sensor.