I have a 1990 190e 2.6 and the car failed CA emissions last weekend. Please see below for results:

15mph RPM-1630 CO2%-15.4 O2%-0.65 HC(PPM) MAX-114 AVE-31 MEAS-176(FAILED); CO% MAX-0.73 AVE-0.10 MEAS-0.21(PASS); NO (PPM) MAX-785 AVE-237 MEAS-288(PASS)

25mph RPM-1702 CO2%-15.50 O2%-0.00 HC(PPM) MAX-88 AVE-20 MEAS-105(FAILED); CO% MAX-0.61 AVE-0.09 MEAS-0.13(PASS); NO (PPM) MAX-724 AVE-199 MEAS-78(PASS)

Does anyone know how to interpret these results? Is it bad? Do I need a new Catalytic Converter? I will be changing the plugs, distributor cap, rotor and perform an oil change. Anything else I need to do? I appreciate any assistance. Thanks!