I got a 2011 workstar with maxxforce 11 low power and boost control solenoid open circuit spn 7312 fmi 5 code 1256. Mitchell 1 does not even have info on the code. Any diagnosis tips is appreciated. I have replaced the boost control valve due to air leak so suspicious it could be to blame.
2011 workstar boost control code
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by bowtieboy77, May 16, 2017.