[Scorpion]

Ok Guys, got the replacement EGR tube for my wagon, as it has broken at the manifold end. Now, ATM I can't get the other end undone....large 1 1/16th nut, seized solid (thanks Ford). So, my question is, if I 'blank off' the manifold end (using a quarter or something behind the plate), what will happen? For the last couple of weeks I've been driving it like this, a little noisy, but no apparent effects on the engine. I know it's part of the Exhaust recirculation, and for a week or so, I don't care about that....but what about where it is connected to, the EGR 'valve' and sensor?

Thanks for any input.

Mike.