On Board Diagnostic Testing? help
I am looking to upgrade my 2003 WRX wagon, by putting on a new up, dp, etc, but I have just found out my county does a gas cap leak check and an On Board Diagnostics Test? Does anyone know who this works, how to pass this test, how to deal with the Oxygen sensors to maintain functionality?
While I'm asking I thought I would ask for recommendations on what to do? I was thinking about getting a Helix UP and catted DP....but what should I do about the other cat in the system, what are recommendations...if possible I'd like to stick with the stock muffler and tips, but don't want to lose too much performance...what do you all recommend?
Also, can I get a new chip....Cobb, etc with this on board diagnostic testing?
Thanks for any info.