P1404 Trouble Code...

As an update to a previous thread (2001 Impala...) --

Had the codes read tonight and it came up with P1404 -- EGR Pintle Position Voltage Error

From the service bulletins that I have seen on this, there is the

appearance that the pintle position has to be recalibrated or the EGR valve replaced.

Question: Is there a way to service the EGR valve and possibly cleanup any gunk from the internals? Is this a replacement or recalibrtion fix only? Any other suggestions?

Thanks, Gary

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ggibson
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Shep

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