cut off problem

MIKE-HKS

New member
Joined
Nov 19, 2007
Messages
67
you try to make a full throttle run and truck falls on it face like if you cut the power to it , then goes again and cuts off ,
sometimes it does it right away, sometimes at different speeds, when it cuts off big cloud of black smoke comes out the back

no check engine light , runs fine at regular throttle
fuel psi @ idle 14
full throttle psi 11

removed the TD tuner , and left pressure box on and still cuts off ,but rail psi is steady @ around 27k analog gauge
turned off the pressure box and no tuner , stock

the rail pressure fluctuates allot goes up to 22.5k then drops to 17.5 and goes up doesn't hold steady
FCA OR PRV ? OR BOTH ?
 
no if the truck is completely stock it will not do it
going to start by capping the rail and go from there
 
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