My light came on so i hooked up the scan tool and the code P0402 came up. i looked at it up and it said it could be the EGR soleniod, valve, or the DPFE sensor. i just had the soleniod and valve replaced a little bit ago so it has got to be the DPFE sensor. Does anyone know where this is located on a 96 gt 4.6 and can i but it at a parts store??

Thanks