[oldeguy]

Does anyone know what the symptoms of a bad DPFE are? I understand that it takes forever for the thing to throw a CEL. Emissions test this year, so no by-pass for me.

[zx5chris]

DPFERG sensor monitors the integrity and flow of the EGR system. The sensor usually fails when it get contaminated with water. Pull of the sensor and tap it against a hard surface and look for water.

If there is water just replace the sensor. Check with the local dealer, with you VIN there might be a recall for you car, if you aren't over milage or time. There is a modification to move the sensor with longer tube to help prevent the water from reaching the circuit board in the sensor.

Good luck :)

[zx5chris]

oh by the way it will activate the EGR valve and cause rough running at idle, & the check engine light will turn on.

[imack]

In my case, the symptoms were stumbling/hesitation at all speeds, which got progressively worse over the course of a work week (Mon - Fri). On the way home from work on the Friday, the CEL finally came on.

[ANTHONYD]

Chugging poor gas milage and hesitation. It's scary for a bit. Unfortunately, you kinda have to drive it until it throws the CEL.

Part is about 60 bucks from the dealer.