Toyota Corolla (E120): Engine mechanical

Emission control

Cooling

Other materials:

Riding with children
Observe the following precautions when children are in the vehicle. Use a child restraint system appropriate for the child, until the child becomes large enough to properly wear the vehicle's seat belt. It is recommended that children sit in the rear seats to avoid accidental contact with the ...

Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in high concentrations. If this hc concentration is high enough, there could be an increase in exhaust emissions levels. High concentrations of hc passing through the catalyst also cause to temperature of the catalyst to ...