October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

With Modulator

Check vacuum lines for correct routing. Disconnect vacuum hose at EGR valve and plug hose end. Connect vacuum pump to EGR valve. Start engine. Apply 4.7 in. Hg to valve and hold.
Engine speed should drop at least 100 RPM or stall. Vacuum should not drop more than 1 in. Hg in 30 seconds. Reconnect EGR vacuum hose.