Join Date: Jan 2014
Location: Arlington, Wa
Thanked 66 Times in 55 Posts
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2014 cummins random boost loss
Bear with me here as i'm currently on vacation, driving and towing with the truck.
truck is a 2014 cummins, 40,000 miles, mods in sig.
long story short i performed maintenance on the truck before heading out with the trailer on vacation. (oil change, air filter, etc...) I also changed to a new set of tunes sent to me from CTT/HPP.
Truck runs fine and shifts great but will randomly drop to ZERO boost. This happens at different boost levels from say 15psi up to 36psi+. No codes, no CEL, no smoke, and you'll drive for a bit, boost will come back but then fall to ZERO the next time you get a good load on it.
The truck will create and hold 36+ psi with NO trailer but if i push it hard enough (i.e- foot to the floor maintaining max boost for an extended amount of time) it will drop to 0psi unloaded as well, again, no codes/CEL's, no smoke.
i'm goint to flash back to my previous set of tunes and see if it still happens but was wondering if anyone had anything else i should check out as well? PID's to monitor, sensors to check, etc...
appreciate the help!
2014 granite crystal laramie 4x4 3500 CC SRW thuren coils/shocks, Edge CTS, EfI live by HPP, 4" TBE, EGR & cooler delete, grid heater delete and relocate by GDP, GDP Horn, REVMAX 550, DDP injectors, COMPOUNDS!