I have a 1996 mazda b3000 I having egr problems I have replace the egr valve the egr sensor and the egr vacuum modulator im still getting a code for p0401 so I removed the egr tube and cleaned it still same code I cleaned the egr manifold port it wasnt plugged I replace all vacuum lines I scraching my head what is wronge
Did you ever discover what the problem was, I am having same issue. Thx. Mike
December, 14, 2007 AT 12:54 PM
I had this same problem about 2 weeks ago. It turned out that the parts house sold me the wrong EGR valve. Sold me the one that pulls up for the MAzda b2300, but when you pull it up on a cross ref. On the EGR part number it pulled up a diffrent EGR part number.