Check engine light on. When light went on and stayed on the code is PO455 ?

Well you live in CA so you have to fix this problem. Here in Florida we have no emission testing. So here it's no big deal. If it was here I would say around $200 to $300. There I have no idea. Did you take it to a real ASE certified shop or a parts house to get the trouble codes?

This is an emission related code that may require us to smoke your system to locate a possible leak. Check your gas cap first for possible damage if not the diagnostic starts at $99. You can call us at 858-271-8006