Car Information:
Ford
Year: 2000
Engine Size: 3.0 DOHC
Trans: Automatic

Issue / Question:
I am getting Code 401, so I replaced the EGR valve. It still ran a little rough, but there was no “check engine” light until yesterday. I punched it pretty hard, automatic downshifted, and the light came on. Code 401. What do you suggest?

Answer:
There may be a lot of carbon in the EGR port and getting stuck in the valve causing voltage issues with the position sensor.

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