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Cummins hard starting

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  #21  
Old 03-10-2009, 05:16 AM
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One way of telling is ramp the rpm's up to 3G and let off. If it hangs for 5sec or more before it drops, got an injector over fueling and it should get replaced.
 
  #22  
Old 03-10-2009, 04:51 PM
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Tried the ramping thing. Took it to 3k let off and she came rite back down. Came home from work, changed clothes to go work out and i'm stranded. Won't start
 
  #23  
Old 03-10-2009, 05:03 PM
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Try doing an APPS reset.

1.Turn key on but don't start
2.Slowly Press Accelerator Pedal To Floor
3.Slowly Raise Accelerator Pedal
4. Turn Key Off, Then Try and Start the Truck
 
  #24  
Old 03-10-2009, 05:30 PM
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Thanks for getting back to me so quik bill. I went out and tried that again to no avail. I'm not sure how familiar you are with the diablosport predator, but im using this to read live data. I can read all kinds of things. When i look at HPCR Setpoint it never changes. Even when the truck is running. I can watch HPCR Pressure and watch it change in real time

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If i hold in my trip meter reset and turn the key on, i get some c-codes. It will show like AA 75 or AA 70. What do these mean?

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I'm also showing a code of P0633. Skim key not saved in PCM. What does this mean?
 

Last edited by paulsatala; 03-10-2009 at 05:30 PM. Reason: Automerged Doublepost
  #25  
Old 03-10-2009, 05:35 PM
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Skim key is the key fob. Could be what the problem is. You change out the battery lately or have a 2nd key??

Or you might have to have a dealer reprogram the key fobs to your truck.

One more thing you can try is, remove the Predator completely from the truck. Unhook both batteries for about 15 minutes. Hook em back up, leave the Predator off and see if it starts then.
 

Last edited by wildbill; 03-10-2009 at 05:40 PM.
  #26  
Old 03-10-2009, 05:42 PM
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I havent changed the batts, although i prob should. Neither key has any effect. are you refering to the actual keys or the locking, unlocking, alarm device?

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But why only when the truck is warm?
 

Last edited by paulsatala; 03-10-2009 at 05:42 PM. Reason: Automerged Doublepost
  #27  
Old 03-10-2009, 05:42 PM
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Is the key tied with the locking, unlocking, panic fob one unit?? Or is it a key with a separate fob??
 
  #28  
Old 03-10-2009, 05:52 PM
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They are seperate
 
  #29  
Old 03-10-2009, 05:57 PM
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Scratch the key fob. Try doing the APPS reset once.
 
  #30  
Old 03-10-2009, 06:00 PM
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I tried the APPS reset. Did nothing. Truck just spins and spins.

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If i hold in my trip meter reset and turn the key on, i get some c-codes. It will show like AA 75 or AA 70. What do these mean?
 

Last edited by paulsatala; 03-10-2009 at 06:00 PM. Reason: Automerged Doublepost


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