I have a 2000 Civic Si turbo. Nothing too major going on with the turbo. The problem I have is that I have the P2T ecu so I can run the Hondata S300. I still have the stock ecu to use for emissions test, if needed, but wont that throw all sorts of codes? I also still have the cat and all sensors are hooked up. So basically what Im asking is how do I pass emissions being that I have an OBD1 ecu in my car?