Well, hello everyone. As the title states, I'm having some idling issues with my Si to say the least. Here's the low-down. This passed week, I spent time installing all my bolt ons which include: RDX injectors, NST Pulleys, Invidia race header, AEM CAI, TBS, IMG, 3in cat-back...I think that's it. So I get off work today and decide to button my car back up. I finish installing the cat-back, fill the radiator and prepare to fire her up. I must add that I'm using flashpro, have a tuning appointment with Evans and recieved a basemap from Jeff for my mods. So, I flash my ECU with his basemap and fire her up. This is where the trouble starts. I allow the cooling system to purge while checking my exhaust seals. I notice one small leak, but not enough to cause the sound I'm hearing. I mean, this thing sounds like my boys 400hp STI. So I decide to take it around the block and see how she acts. I slowly leave my driveway and the CEL starts flashing. I let off the gas and it goes off after a few seconds. I then take it out to the main road and rev it out a bit (only to 5k). I notice that it revs much slower than in stock form. So I take it easy on the way back to my house and realize that its starting to overheat. I pull back in my garage and park it with utter disgust. I might add that when I got on it a bit VTEC came in at 3500 rpm...isn't that used for turbo setups???? I double checked all my wire connections and everything looks good. I even checked the injector wiring and it all seemed good (TC clips with RDX injectors (yellow wire with black stripe on driver side)). Sorry for the rant but I wanted to give you all the symptoms. It almost seems like I'm getting too much fuel but the idling issue seems like its not running on all 4 cylinders. I wasn't in the motor and didn't mess with timing. Has anyone had a similar problem? I'm gonna call Jeff on monday but wanted to get some input. Please help if you can, thanks.