Hello
I have this code now for a month after buying this truck. The DPF is deleted by the previous owner. I looked online for the code it shows
P04D900: Closed Leop EGR Control At Limit - Flow Too Low, No Sub
I’m sure if I need to change the EGR VALVE or EGR temperature sensor or clean the EGR COOLER
please advise if you have any solutions
Thank you
Volvo VNL 630 D16 code P04D9
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Majid199, Mar 4, 2022.