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O4 Cummins lope at idle

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Old Feb 16, 2026 | 09:49 PM
  #41  
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I don't but I was getting the same soft code before putting my fass on, put it on about a month or 2 ago, I think it could be a wiring issue, when I installed the fass the factory wire was cut and someone tapped the fuse box u don't happen to know the wire I could tap to not have to keep it tapped to the fuse box do u
 
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Old Feb 17, 2026 | 07:37 AM
  #42  
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did it have an in tank pump? Should be a pump harness near the filter housing
 
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Old Feb 17, 2026 | 08:29 AM
  #43  
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Yes it was relocated to in the pump (sticker on engine bay said) but I think they cut it were it comes off the relay in the engine bay to the fuse box or computer wherever it was suppose to go
 
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Old Feb 20, 2026 | 11:24 AM
  #44  
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Well soft code went away but still loping so I guess I'll get that cam/crank sensor changed and report back
 
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Old Feb 22, 2026 | 02:13 PM
  #45  
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code went away on its own?
 
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Old Feb 22, 2026 | 04:27 PM
  #46  
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I used the smarty to clear it and it didn't come back as of yet
 
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Old Feb 28, 2026 | 09:18 PM
  #47  
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Any idea what this is with oil on it
 
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Old Feb 28, 2026 | 11:40 PM
  #48  
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Green plug? Seems like the oils all coating it? But I did change the cam/crank sensor will report back in the AM if it still lopes or not. It was starting to lope even warmed up so I assume it's getting worse whatever it is
 
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Old Mar 1, 2026 | 01:23 PM
  #49  
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Didn't fix it the cam/crank sensor
 
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Old Mar 1, 2026 | 01:39 PM
  #50  
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The close up picture is the oil pressure sensor
 
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