Emissions Monitors - 2 won't reset. :(

[911monty]

Not enough info. Need year, current codes, was the CEL up before you disconnected the battery? Resetting will not clear an actual fault.

And maybe it's time to do a few full throttle high rpm blasts to get the cats working.

[TRP]

Originally Posted by 911monty

Not enough info. Need year, current codes, was the CEL up before you disconnected the battery? Resetting will not clear an actual fault.

And maybe it's time to do a few full throttle high rpm blasts to get the cats working.

Model Year: 2000
Mileage: 40,800
Codes: None (I've checked with my FOXWELL ODBII Reader)
Disconnected battery to install stereo

[JFP in PA]

Originally Posted by TRP

Model Year: 2000
Mileage: 40,800
Codes: None (I've checked with my FOXWELL ODBII Reader)
Disconnected battery to install stereo

I don't know if the OBD II unit you have is capable of it, but I would warm the car up and check the voltages of the sensors on opposite sides of the three way converter, what you are looking for is one voltage remaining constant while the other cycles in a sine wave fashion; if they are both moving the same, your cats are on their way out.