5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

Tapping the pump

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Old 05-09-2010, 10:55 AM
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Default Tapping the pump

What do yall mean by tapping the pump and how is it done. Also what do you gain by doing it?
 
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Old 05-09-2010, 11:14 AM
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Tapping the pump usually refers to the installation of a tuning box with a pump wire.

When you tap the pump wire with the box it gives fueling control to the tuner.
 
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Old 05-13-2010, 09:50 PM
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How is it done?
 
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Old 05-13-2010, 09:52 PM
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a scotchlok connector usually. Which is not the best way. The best way to do it is with a stealth plate cover or with good old solder and heatshrink.
 

Last edited by Dr. Evil; 05-13-2010 at 10:20 PM.
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Old 05-13-2010, 10:07 PM
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stealth plate is the best way
 
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Old 05-13-2010, 10:09 PM
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Stealh plate for sure. I shoulda went that route looking back so much nicer
 
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Old 05-13-2010, 10:18 PM
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thanks guys does it make a big difrence when you tap the pump.
 
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Old 05-13-2010, 10:22 PM
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oh yes it does make a big difference.

But befre you do this - make sure you have proper guages - including a fuel pressure guage and a better lift pump. Tapping the wire on an otherwise stock truck usually results in a dead VP-44.

What are the mods that youve done to your truck?
 
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Old 05-13-2010, 10:29 PM
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I have an afe stage 1, banks otto mind and 4 inch straight piped.
 
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Old 05-14-2010, 07:17 AM
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