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Service eng light

(1998 Nissan Sentra)
in Beaverton, OR on March 18, 2009
I have this light on in my dash, end i do diagnostic test, end
the answer was: low flow detected, end 4 probable cause:
EGR-passages blocked
EGR-pintle stuck closed
EGR-volume control valve open or shorted
EGR-temperature sensor error.
So; my cuestion is, how i know wich is the real cause of my service eng light.
Displaying 1 answers & 0 comments
Popular Answer
on March 19, 2009
Sounds like the EGR passages are blocked and causing the check engine light to come on New EGR valve is $150 to $200 at the parts stores but its $107 at http://www.parts.com/
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