05 X RPM's dip at idle

[Codum]

Ok, my 05 X has an issue. It's bone stock 178k miles. Twice in the last week at idle the RPM's dip a little. It's never cut out, not a rough idle, just dips enough to get your attention then it goes back up to normal. Does not do it every time, no cel. Runs fine once you give it fuel. I did the blue spring last fall, FICM repair two months ago. No other issues. Thanks!

[Codum]

Also, forgot to mention, the 05 X has an 04 motor. I also cleaned the turbo and replaced the unison ring two years ago. Also cleaned the egr valve two years ago and cat delete.

[southend]

My truck did that just before an injector went out. You need a monitor, our trucks store codes.

Sent from my phone that somebody didn't help me get.

[Codum]

What's your thoughts on a scan gauge ii? X gauge add on? Will it work for my 02 7.3 as well?

[Codum]

Picked up a scan gauge and the X is running fine now and has no codes codes?