that code means you have a bad pre cat. i know that from experience since it has happens to me. i got pulled over the first day i had installed my turbo kit and since i live in california, i had to take everything out and go to a state referee and pass smog. i had that CEL code before i installed the turbo kit but since i had to get my car smogged, i had to buy a new pre cat and now the CEL is gone and i passed the smog test. if you are interested on buying a new pre cat, i found it half the price from this web site
www.convertergeek.com.
hope this helps