I have a corvette air pump that I use in order to get pass emissions but this time I was unable to pass. I have the original catalytic converter.

I was going to, in these steps, do the following:

1) change O2 sensor
2) change sparkplugs and wires
3)buy high flow cat

any suggestions?????

Thanks

 

Should I have put this in the 3rd gen discussion?

 

Hey i'm also in MA! emissions are a bitch i feel for ya...How about trying alcohol in the tank..

 

Alcohol..rubbing??? Should I put a mix in the tank or just a few ounces?

Anyone think it could be the O2 sensor or the cat? Both are 10 years old.