Mechanics

QUESTION EGR FLOW INSUFFICIENT ( P0401)

2002 Isuzu Rodeo

Electrical problem
2002 Isuzu Rodeo Question 6 cyl Two Wheel Drive Automatic 130000 miles

check engine light has come on and the code read out is p0401. The parts shop said this is all they know.. Can you tell me if is a specific sensor.
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Cg56
December 1, 2009.



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