by rlees85 » Fri Aug 09, 2013 10:29 pm
haha I did EXACTLY the same with my brothers Alfa!
As ecuedit says, if you look at the EGR valve on the exhaust manifold you will see a rubber vacuum pipe coming into it. If you follow this pipe you will come to a little electrical valve, again with two vacuum pipes (one going into the EGR valve itself and the other going to the vacuum source).
You need to:
1: Disconnect the electrical connection to the EGR electrical valve (EV).
2: Disconnect the vacuum hose that feeds vacuum to the EGR electrical valve and block off the hose you just disconnected (with a bolt + a dab of silicone sealant does the trick nicely). This is to make sure you do not have any vacuum leak :)
Otherwise, as the ECU no longer controls the EGR electrical valve, it just holds it open all the time. The car will run like crap.
In the long run, you really need to remove the EGR valve from the exhaust manifold and the piping from that to the inlet. Then you need two decent thick blanking plates (one to go on the exhaust manifold where EGR valve was, and another to go on inlet manifold where EGR pipe work was). Make sure you get new metal gaskets for this too... Just doing the two steps above will get your car running nicely for now with no-egr :)