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thanks for the tip on the cp3 inlet pressure. I’ll have him dial that back. Regarding the monitor showing 30 on fuel pressure, I’m at a loss. I was originally thinking it was in 1000’s, rounded?? Whatever it’s reading goes to 0, and corresponds to the truck running rough. After it went to 0...

Not sure what you’re asking here. Supposedly they modified the factory sending unit with the AD kit. So I’m thinkinking the plastic fuel tube with the 45 is positioned in the bottom of the sending unit. am I answering what you’re asking?

Finally got my son motivated to get this thing going. Here’s some updates. there were definitely codes, but they cleared them without noting them, so not helpful. put a mechanical fuel pressure gauge on the lift pump and confirmed consistent pressure - set at 20psi. Removed supply line...

Good evening, I’m trying to help my son get his pickup back on the road. Truck is a 2006 2500 quad cab automatic with 290k. It was starting hard and but ran fine once started, then the mods came. Replaced lift pump with Airdog 100gph pump. Replaced injectors with thoroughbred 100hp injectors...

Is anyone here familiar with this package from Duramaxtuners.com? I bought the package from a local diesel shop with an ez link auto agent 3. The problem is they didn’t really give me any instructions. my specific question is….. these are all ECM tunes, so when I install, do I need to I need...