Hi. Thanks for using JA! I will try and help you out.
When you say ignition loss and diagnostic fault, do you have a
"Loss of Combustion" code or a "Fail to Ignite"?
Thanks for the information.
First, make sure that the Regeneration Inhibit switch is in the off position. (If you haven't already)
Have you tried to pull over and perform a manual regeneration using the manual regen switch?
Please keep me posted.
I was just like to see if we can get a regen done. Sometimes when you are having regen problems, it is best to pull over and perform a regen. If you keep driving the truck, it can cause the DPF to continue to get soot loaded.
Please let me know if you need anything else.
The lack of power can be caused by both the DPF system or the fuel system. I would lean more towards the fuel system. Things like fuel filters and the transfer pump can cause this.
The DPF could only cause low power if it gets clogged and restricts air flow.