After 240.000 km, the "poor" Dobl? she could not do a climb of 10 to 15 degrees, I decided to remove the EGR to check, I found the manifolds intake completely clogged by slime black
I cleaned out everything, physically deleted the EGR valve and plugged the holes in the suction and discharge, I left the valve is mounted only to connect the connector, no light on for now.
Of course, now the Dobl? fly! Only problem... a certain fumosit? when you accelerate at the bottom, may be the remains of soot remaining in the manifolds ?
I noticed also that the EGR valve was not a "ON-OFF" the cio? open or closed, but from what I have seen there is a small passage of exhaust gas constant, and then have the open valve full flow
Am I wrong?