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Old 11-23-2014, 05:22 AM   #1
Join Date: Nov 2014
Location: Kansas City. Mo
Posts: 6
Vehicle: 92 Nissan D21 SE
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Default 97 nissan sentra code p0400

so my buddy called me up today because his CEL come on. scanned it, got code P0400 which is an EGR malfunction. the car sometimes sputters at idle and sometimes dies. where should i start as far as fixing it goes? how to i test to see if its the actual valve thats bad, if has a clog somewhere, or if its a solenoid or something. any help would be greatly appreciated. thanks
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