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Run to Rund · 12-10-2013, 07:29 PM

"Tuning" or adding a power box to the 99 Cummins ISB can result in injection pump failure, especially if the lift pump dies. At a minimum, add a fuel pressure gauge before the injection pump.

12-10-2013, 07:29 PM	#3
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 586 Likes: 9 Liked 56 Times in 29 Posts	Re: Diesel pusher question "Tuning" or adding a power box to the 99 Cummins ISB can result in injection pump failure, especially if the lift pump dies. At a minimum, add a fuel pressure gauge before the injection pump.