Hello guys I created a post (https://www.northamericanmotoring.co...ml#post4648042) because I forgot to connect one of the vacuum tubes to the plastic plenum. Long story short, I went ahead and took the R53 apart and attach the tube. I'm still getting the P1242 code and I can still hear an air leak (it might be a boost leak I will check the intercooler boots). I also get P0507 under "Pending Fault Codes" on my scanner, the code states something to do with the throttle body (higher idle RPMs). The P0507 does not appear under fault codes only under pending fault codes. I'm completely lost on what to do, should I buy new Map and Tmap sensors? In ECS tunning both sensors are $35 each. The R53 is still ruff on idle and it just revs to 1500 RPM and drops down to nearly 500 RPM, it also surges when warming up.