12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

shift points

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  #11  
Old 06-29-2010 | 06:09 PM
cumminspwr11's Avatar
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or you could just wire od and lock up on switches and then thier there when you want them to be i did that and i love the way it works
 
  #12  
Old 06-29-2010 | 07:22 PM
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i thought a lock up switch was pretty had on the old stock input shaft. guess it all depends on how you drive and how you use it.
 
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  #13  
Old 06-29-2010 | 08:30 PM
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I'd have to go out and drive it to give you accurate numbers. I've raised the OD and lockup shift points by about 5 mph -- just enough to make it more drivable. It seems to have eliminated the short shifting and dead spot.
 
  #14  
Old 06-29-2010 | 10:44 PM
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did you just knock the tps pins out and rotate or drill them out?
 
  #15  
Old 06-30-2010 | 01:39 PM
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Originally Posted by lodal cummins
did you just knock the tps pins out and rotate or drill them out?
I knocked them out, then driilled them out about 2 sizes bigger. I could have gone more, but I had just about what I was looking for in idle voltage (1.37).

As an aside, I'm also of a mind that shifting the TCP a bit makes drivability better simply because the module gets a wear spot right at crusing rpm from sitting at that place all the time. A bit of movement by adjustment seems to let the electrical contact on the pot ride in a different spot, making shifts more responsive on top of at a slightly different rpm.
 
  #16  
Old 06-30-2010 | 06:49 PM
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uh this may be a stupid question but what is the TCP? i think i will knock out the pins and see what idle votage is. i really hate drilling the new 156 dollars tps
 
  #17  
Old 07-01-2010 | 07:58 AM
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Originally Posted by lodal cummins
uh this may be a stupid question but what is the TCP? i think i will knock out the pins and see what idle votage is. i really hate drilling the new 156 dollars tps
TCP is a typo... TPS is what you want to fix. I wouldn't worry about drilling the new part unless you have a warranty on it. You are not really going to hurt any of the internals by enlarging the holes a bit, and you are only going to enlarge them a BIT. Just enough to gain a couple ten-thousands of movement for adjustment.
 
  #18  
Old 07-01-2010 | 05:55 PM
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ok thanks!!!!!
 
  #19  
Old 12-13-2011 | 08:26 PM
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anyone know how to wire this up with the switches.
 
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