cm2250 derate

[Bengy88]

(08-08-2022 )tree98 Wrote:  Why in the world would you let it get to this point?? thousands of counts of 559?? And 16 other codes!!! thats just total neglect. before you do anything else you should take the head off the high pressure fuel pump and look inside to see if its' destroyed. If it is you don't need to worry about the other 16 or so codes because your engine is now a boat anchor.

That 559 code is nothing to play around with.

Yea what tree98 said. If that pump comes apart your engine is shi#t. You need to toss the other codes on the back burner till you figure the 559 out. I wouldn’t start it at all until I pulled that fuel pump head. If you keep running it you may not see another thousand miles much less thousand faults.