ISX engine surging

[Roysbigtoys]

(07-12-2016 )Wiseman Wrote:  Where did you fuel last time ? Do you have see true filter ? If you have one , where's the level ? When did you last change your fuel filters ? Let's start with the simple things . Then check your fuel pressure. See what codes you have . It's properly programmed . It shouldn't switch in different mode itself .
To me sounds like fuel starvation. Any smoke?

I only have the factory filters....no see thru.
The filters have about 10k miles on them. I agree with you on starting with the simple things.
No smoke .......... it did a lot before the mandate was removed.