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
appearance that the pintle position has to be recalibrated or the EGR
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?
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