Hello all,I've got a 95 Ford E250 7.5l 8700 gvwr failing NOX at 15 mph 2100ppm and rite at limit(approx.2000ppm) at 25 mph. There are no codes set and it passes self [...] manual mode at 15mph the ecm never triggers the EGR,if you stab the throttle the datastr... Login to read more.