| Message |
...Here's the deal-o. The EGR has the upper diaphragm which is attached to a vacuum line that has a solenoid on it. When vacuum is applied to the EGR, it opens the valve below to allow exhaust gases to pass into a feed tube that attaches to the manifold. So, if the manifold sees boost pressure, the tube leading down to the valve will see boost pressure. If there is a leak on the lower part of the valve, it will manifest itself when the intake in pressurized...all that said, I think the EGR can leak boost BUT the amount it is leaking could be very little, little enough that the turbos can maintain full pressure. My EGR does work properly. It stalls the car when vacuum is applied (when running) and the diaphragm holds pressure. I sincerely hope I have a failing MAF. It would be great : ) -Dave
Z's Rule! |
 |
