Question about 2000 Mercury Sable

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Erg flow insufficient

Where is the erg located on the motor.

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  • lfisk196
    lfisk196 Feb 07, 2012

    I should say where on the car is it located? Is it a easy fix? How much is the item? The car is a 3.0 single cam v-6.


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  • The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
  • There is a blockage in the EGR (tube), most likely carbon buildup
  • The EGR valve is faulty
  • The EGR valve may not be opening due to a lack of vaccuum
It is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)
  • Replace the EGR valve
The EGR valve is located in the engine compartment. Its should look this

erg flow insufficient - 2_7_2012_10_25_48_pm.jpg

Posted on Feb 07, 2012

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