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2017 259D codes

Erik Fako

Member
Joined
Feb 24, 2023
Messages
6
Location
North Carolina
I am getting engine code 523523-2: "engine injector Cylinder #1 and Cylinder #4 data erratic intermittent or incorrect". It is also sounds like it's running rough, perhaps cyl 1 & 4 not firing? Anyone one have any thoughts or suggestions as to troubleshooting/resolving the issue?

Thanks in advance.
 

Nige

Senior Member
Joined
Jun 22, 2011
Messages
30,341
Location
G..G..G..Granville.........!! Fetch your cloth.
This is what the book says......

523523-2, Engine Injector Cylinder #1 and Cylinder #4 : Erratic, Intermittent, or Incorrect.
Troubleshooting - "Injector Solenoid - Test".

See attached procedure. If you want a complete electrical schematic for the machine please ask.
 

Attachments

  • UENR3423-29 - Injector Solenoid Test.pdf
    197.5 KB · Views: 2

Erik Fako

Member
Joined
Feb 24, 2023
Messages
6
Location
North Carolina
Thanks Nige. I'll give it a shot. I still have the electrical diagram that you sent me one previously when I was having problems with the advanced display, which I think was the complete wiring.
 
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