09-06-2015, 09:10 AM
Could there be cat. converter damage?
Also Nine876, there are procedures in the service manual to check O2 sensor operation. Your dealer can use the HDS tester. Is there a check engine light (called the MIL--malfunction indicator light)? If so, the HDS can pull the DTC (diagnostic trouble code).
From Wiki (yeah, I know) :
Any condition that causes abnormally high levels of unburned hydrocarbons—raw or partially burnt fuel—to reach the converter will tend to significantly elevate its temperature, bringing the risk of a meltdown of the substrate and resultant catalytic deactivation and severe exhaust restriction. Vehicles equipped with OBD-II diagnostic systems are designed to alert the driver to a misfire condition by means of flashing the "check engine" light on the dashboard
Also Nine876, there are procedures in the service manual to check O2 sensor operation. Your dealer can use the HDS tester. Is there a check engine light (called the MIL--malfunction indicator light)? If so, the HDS can pull the DTC (diagnostic trouble code).
From Wiki (yeah, I know) :
Any condition that causes abnormally high levels of unburned hydrocarbons—raw or partially burnt fuel—to reach the converter will tend to significantly elevate its temperature, bringing the risk of a meltdown of the substrate and resultant catalytic deactivation and severe exhaust restriction. Vehicles equipped with OBD-II diagnostic systems are designed to alert the driver to a misfire condition by means of flashing the "check engine" light on the dashboard