New hoses are installed. SKM2.018GFEA Catalyst mat erosion allows catalyst monolith to move and crack. A new catalytic converter will be installed. Avg CO of the subject vehicles may exceed the std due to insufficient robustness of emission control logic and calibration with emisssion parts at high mileage. Low tank pressure under certain conditions causes a false MIL for a leaking canister.
Repair involves modification of the charcoal canister.
The recall service consists of reprogramming the diagnostic software on all affected vehicles. Federal volumes for states requiring California emission standards.