Help, my VX is a Gross Polluter!

[92VXHatchguy]

Hey guys, I thought after my major service (timing belt, water pump, distributor, spark plug wires, spark plugs, new o2 sensor, seals) my car would be ok to get smogged. I have 142k plus miles on the car, original motor. I took it today and it failed. Oh btw, i didn't warm up the car, just drove the car from my house to the smog place and it's about 5 minutes down the street. Here are the readings:

1st test rpm 2415
Co2% 13.8
o2% 0.1

2nd test rpm 2246
Co2% 13.8
o2% 0.1

Visual inspection:
Pass

Functional Check:
Pass

Emissions test:
Gross Polluter

First test @ 15mph

HC (PPM)
Max 138
GP 312
Mine was 1238

CO(%)
Max .84
GP 2.34
Mine was 1.36

NO(PPM)
Max 859
GP 2088
Mine was 527

Result was GP for Gross polluter

Second run @25mph

HC(PPM)
Max 112
GP 262
Mine was 1071

CO(%)
Max .73
GP 2.23
mine was 1.36

NO(PPM)
Max 798
GP 1888
Mine was 507

Result GP

What can I do? The tech was saying maybe to clean the injectors? I have no clue what to do. Someone else recommended to get a new cat. Any clues?

I live in Los Angeles, CA. Emissions here are strict. My gas mileage still sucks. It's not getting anywhere near where this car was designed for. I think i'm average 28 mpg so roughly 280 a tank.