Ok, today I failed our WI state emissions test.

The car only failed in two (2) areas the HC and NOx.

The limit for HC in Wisconsin is 0.8000 grams/mile and my car got a reading of 2.9796 g/mi.

The limit for NOx is 2.0000 g/mi and the car was reading 2.2115 g/mi.

What could I do to get those two numbers down??? My car converter is only 2 years old and I only put it on when I have to go for emissions. The plugs/wires/ distrib. cap/ and coil are also only 2 years old. Since then I have drained and refilled the coolent, just changed the oil before I took it, new thermo sensor.

I do have a TBI chip from Brian in my car too, the stock replacement. Also running 89 octane gas..

I still have the open element on. IAC is relocated. The heat riser is off. The vacuum plug on the TBI is blocked off too....

Any hints or suggestions?????
THANKS

 

I'm not a motorhead, but a high HC means unburnt fuel or something related to that canister thing. Running too rich?