Question about 2003 Nissan Sentra
Open your hood. The EGR valve is attached to the metal emissions tube above the intake manifold and next to the firewall. It is a round, metal cylinder with a rubber vacuum hose running from the top of the valve.
Posted on Dec 06, 2010
You need to check the passages from the egr valve to the intake to see if there is excessive carbon buildup thereby blocking the passage to the intake. The principle is that when the test for the code runs it is to determine if the egr system is operating correctly. It opens the egr valve to lean out the fuel mixture an so determine if the system is operating correctly. If the code is for electrical operation of the valve it will be an electrical issue
Posted on Aug 14, 2009
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