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P0400 Diagnostic Trouble Code Discussion for February 2012

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
1999 Nissan Altima GLE 2.4L Hesitation, Misfire, Egr opens all the wa VIN: 1N4DL01D3X
P0400: EGR System Recirculation Flow. As stated this has a new egr valve, new bpegr and the intake was cleaned out. What is happening is instead of the 2 to 4 inches of vacume coming to the egr valve i am getting full vacume of 18 inches right on acceleration and when ever the solonoid turns on. I...
February 09, 2012