NYSUPstater
Well-known member
Have had an ongoing issue w/ this code for past 9 months/6,000 miles. This past Sat will make it #5. Ford's idea of fixing it is to clear/update the computer. IMO there is a bad NOx sensor and they don't want to go after it (still under wty). Doing some digging, Ford has several bulletins all saying the same thing yet not fixing the problem. Ford even went onto say that using any aftermarket cleaning liquids or tools for the EGR cooler/intake can cause this. 99.9% of the products I've seen all are for the engine and nothing for the exhaust yet all go in the fuel system. Anyone else having problems w/ this? Heard that GM had a really bad batch of NOx sensors (5,000 or so) last year. FWIW, I've used the same products for past 3 diesels and never once had a problem w/ them (truck or product) incl this truck till last Sept when this all started. Funny how Ford says the use of products may cause things, yet all was ok for 1st 1.5 years and 16,000 miles. UGH !