I have done almost everything to this car and it still won't pass emissions.

It almost passes the HC, levels are so close but yet it don't pass.

I have did full tune up (oil change, oil filter, new spark plugs, new wires, new distributor cap and rotor, and new air filter)

Cleaned the throttle body, replaced the PCV Valve, had the timing done on it and I put a new Catalytic Converter on it but it doesn't have the stock exhaust on it, as they call it a rice can is one it.

The damn thing still won't pass, even tries running alcohol in it with high octane, and I put BG44K in it and still nothing. Even ran it hard on the highway for some time before I took it in to get tested.

Is there anyone out there that can help?

 

Have you checked the valve adjustment. Make sure they are on the loose side of the spec.

 

Sounds like it's running rich. Is it going into closed loop?

 

@92civlude, I will check the valve adjustments...

@phootbag, I'm not sure what you mean by closed loop?

 

Butterfly69 post the emissions output from the test.
We will need O2, CO, HC, and NOx. That way we can diagnose what needs to be addressed.

 

Well I took it to the State Emissions to have test done on it and they found out I have 50psi on cyl. #4....

Guess that answered my original question....

Thanks for all your help guys

 

oh by the way my reading for emissions where...

limits: readings:
HC 1.5000 1.9598
CO 15.0000 9.8476
CO2 - 319.5148
NOx 3.5000 1.2281