| Re: High HC emissions -- redux |
Subject: Re: High HC emissions -- redux by josephf31 on 2013/9/17 5:42:17 Have had to put this project on hold recently due to other issues, but ready to get back to it now... Question; if the pre-cats are shot wouldn't that cause my high HC emissions? The idle HC dropped a lot when I replaced the main cat, figuring if the main one was that bad (totally blown out) the pre-cats may not be so hot... If that is the case, would replacing the pipes without pre-cats and leaving just the main cat cause trouble passing the NJ emissions? |
