Rawze.com: Rawze's ISX Technical Discussion and more
ISX 15 code spn 641 fmi 11 - Printable Version

+- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums)
+-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1)
+--- Forum: Ask Your question... (/forumdisplay.php?fid=45)
+--- Thread: ISX 15 code spn 641 fmi 11 (/showthread.php?tid=9934)



ISX 15 code spn 641 fmi 11 - farmtrucknw - 01-30-2025

Have a 2016 Prostar with ISX 15 400ST, bone stock and have been getting this code thrown erratically lately. Truck seems to run fine and when it throws I will get the triangle on the dash warning engine light. Cycle the key and it goes away. What do I need to be looking for on this? Turbo actuator on the way out or spotty connection on the actuator harness? Truck has 492k miles on it.

Thanks.


RE: ISX 15 code spn 641 fmi 11 - tree98 - 01-30-2025

What is the actual code shown in insite?


RE: ISX 15 code spn 641 fmi 11 - farmtrucknw - 01-30-2025

I don't have insite, that was the pushing the cruise control on and resume button together. I thought I could pull them off with efi live and HD autocal but I could not. I have a neighbor that has insite if I need to have him do it.


RE: ISX 15 code spn 641 fmi 11 - tree98 - 01-30-2025

Yea you need to get the actual code.


RE: ISX 15 code spn 641 fmi 11 - Rawze - 01-30-2025

spn641, fmi11 = I think that is Fault Code '2198'. VGT actuator root cause unknown.

Do a turbo inspection, re-calibrate it, etc.


Is this engine de-mandated (deleted)... if so then copy the program from the ecm and e-mail it to me for a review so that you know its not tearing up the turbo.