I live in California and I just bought a 94 Yota 2 wheel drive 22RE motor. It failed the emissions aspect of the smog test and I don't know why. Everything else passed. The mechanic recommended that I get a tune up; new wires, spark plugs, oil change, and an engine flush. However, this all has been done except for the engine flush. It's only been about 1500 miles since the tune up. The motor has about 200,000 miles. Here is where it failed;

25 MPH HC (PPM) max-60 ave-22 meas-72

Therefore, I barely failed by 12. I don't know of anything that is causing the truck to fail. Any tips or suggestions?