Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Random/Multiple Cylinder Misfire Detected (P030000,P030027,P030085-P030600)
DESCRIPTION When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. Extremely high hydrocarbon concentration levels can cause an increase in exhaust emission levels. Extremely high concentrations of hydrocarbons can also cause increases in the three-way catalytic co ...
