codes 326 & 327
EGR/DPFE signal low. Okay this is why my check engine light has been on for the past few months! I don't wan't to pay Ford 125 bucks for a little sensor box so what can I try? Can I clean this thing? Any tricks? Bypass goodness? and if I have to buy one are there cheaper aftermarket alternatives? Ford dealer said no but I don't believe them!