okay i got a 1996 Neonator (2.0 DOHC Automatic) which should get amazing mileage and it used to but now i have an issue i have an egr code and i am getting tired of changing neon egrs so i was thinkin who needs it i want to take my egr off and make an intake backoff plate to bypass the portion and put a plug in my exhaust tube because i am thinking my egr is at all times staying open and pushing way to much exhaust gasses into my poor mini engine problem is will i harm my mileage or performance with this little evil plan i have? it seems to be the absolute most efficent way to run my engine