Failed emissons on a stock KA any ideas?

[Clearalbino]

Results are as followed

HC-1.49Allowed-.80

CO-58.55Allowed-12.00

I've replaced my spark plugs,wires, rotor, cap, o2 sensor

All the car has on it is a cold air intake and cat back exhaust

I've inspected the spark plugs and o2 sensor and they have carbon build up.

Any idea on what it could be?

[Bigvinnie]

Set your distributor to 20BTDC. You may be off a tad. Also check all your vacuum lines. Run an ecu diagnostic to see if any smog devices failed.

[MikeMurphy]

Switching up the coolant temp. sensor helped me quite a bit. Mine was on the fritz.

I would have to dig up my papers to give you a numerical improvement. I had passed by less than 1% on one of the catagories. I then put another 20,000 km on it and the only thing I changed was the coolant temp sensor and it chopped some of my emissions by 70%. Its really only a $30 that should help you anyways.

If you really want me to dig up my papers do let me know.