Posted 3/1/2021 21:20 (#8867032 - in reply to #8867014) Subject: RE: Agco challenger code 27/07 665E
No but that could cause the black smoke. Why did he think the sensors were reading wrong? If a nox sensor is faulty it will give a error on the dash and derate otherwise I wouldn’t replace them. You have to get the exhaust system good and hot before the sensors start reading correctly.