INJECTOR # 5 FAULT CODE

[dantheman]

2007 cpx 613

Hey all. Im new to the site, and was hoping for a bit of help. getting a fault code of ***128   5005   01   05*** figured out the first five represents an S .128  5  is the fault for injector #5.   question is do i bother troubleshooting the sensor or just replace the injector? also, is it a tough job? any help would be appreciated. 

Thanks 

.

[Mackpro]

Could be harness , injector or rocker arm.  Cant find the Bulletin on the rocker arm causing the issue.  I just remember it was for the non-DPF MP-7 engine only. Ill keep looking. 

injector Harness end connectors.pdf

[Mackpro]

Disregard what I said about the rocker arm, that only applied if it was a FMI-7 . The FMI-5 you have means open circuit so chances are harness/harness end or injector