Questions on my isx 15_continued
11-14-2022, (Subject: Questions on my isx 15_continued ) 
Post: #1
Hello everyone. Code 4691 help
   Ok I put the retaining rings in my 2015 kw isx15. I put everything back now when I spin it over it gives me code 4691. What could cause this? Could I have not put the rings in far enough? I used the tool Cummins sold for the job? I tightened it all the way down like it was suppose to be. Any ideas are welcome thanks Nate
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11-14-2022, (Subject: Questions on my isx 15_continued ) 
Post: #2
RE: Hello everyone. Code 4691 help
What rings are you referring too? The injector cup rings?


User's Signature: Warranty??? Yeah right, I am the warranty!!!
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11-14-2022, (Subject: Questions on my isx 15_continued ) 
Post: #3
RE: Hello everyone. Code 4691 help
Do a fault code search on quickserve.cummins.com


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11-14-2022, (Subject: Questions on my isx 15_continued ) 
Post: #4
RE: Hello everyone. Code 4691 help
(11-14-2022 )hhow55 Wrote:  Do a fault code search on quickserve.cummins.com

Think I’m gonna retorque the injector hold downs and retaining nuts according to QuickServe.
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11-15-2022, (Subject: Questions on my isx 15_continued ) 
Post: #5
RE: Hello everyone. Code 4691 help
(11-14-2022 )Nhramember Wrote:  
(11-14-2022 )hhow55 Wrote:  Do a fault code search on quickserve.cummins.com

Think I’m gonna retorque the injector hold downs and retaining nuts according to QuickServe.


it also needs to pass an injector leak test as specified in this video: http://rawze.com/forums/showthread.php?t...2#pid69262


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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 Thanks given by: hhow55
11-15-2022, (Subject: Questions on my isx 15_continued ) 
Post: #6
RE: Hello everyone. Code 4691 help
The fuel rail pressure commanded is 5395 and the fuel rail measured is only 141 psi. Fuel rail nationality sensor is -434psi. It has me stumped fuel filters full etc.
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11-15-2022, (Subject: Questions on my isx 15_continued ) 
Post: #7
RE: Hello everyone. Code 4691 help
      This is my insite
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11-15-2022, (Subject: Questions on my isx 15_continued ) 
Post: #8
RE: Hello everyone. Code 4691 help
You got a serious leak somewhere obviously. What all did you have apart when you put the rings in?


User's Signature: Warranty??? Yeah right, I am the warranty!!!
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11-15-2022, (Subject: Questions on my isx 15_continued ) 
Post: #9
RE: Hello everyone. Code 4691 help
(11-15-2022 )tree98 Wrote:  You got a serious leak somewhere obviously. What all did you have apart when you put the rings in?
I took loose fuel rail ,quell lines and the tubes to pop the injectors out to put the retaining rings in. That’s it torqued it’s back down. Im a take it apart again tomorrow to double check everything.
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