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P0401 Changed ERG valve and Pump, replaced all vacum lines

(2001 Ford Escape)
in El Paso, TX on December 26, 2012
Cleard the code but it still runs rough at idol, anything els to check?
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Popular Answer
on December 27, 2012
You have wasted money as you well know now. Could be DPFE sensor or EGR passages. Take it to a pro unless you want to keep shooting money at it.
on January 15, 2013
I have a constant low vacuum at the EGR valve less than 5 Hg at idle, which it seems is enough to move the diaphragm in the ERG valve. I replaced the EGR solenoid, and I have voltage at the solenoid plug. However if I disconnect the Solenoid plug I still have vacuum at the EGR. I removed the EGR vacuum hose and plugged it, put a vacuum Gage in the system at the intake manifold I get about 17Hg. Reconnect the EGR vacuum line and it drops to about 15Hg. I am stumped
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