Cummins4life

Yes it was removed so I installed it because after reading the artical it said some of the older ones needed jumped so I was just checking it so I’ll swap it back. As far as I know the engine was never swapped I’ll double check with a snap-on scanner for sure. Should a manual gauge read higher than the quad or the ecm?

So the jumper is not in place so I put it in place. Update installing the jumper didn’t not work when I build 35 psi the quad is only showing 5 now

So I didn’t check the jumper on the box but I did hook a scan up to the obd and the computer is reading 36psi at wot and the gauge is reading 44psi so my computer is what’s off the sensor is reading good the tps is reading good all the ohms check out there’s no brakes in the wires took the truck into a shop had them check the computer over and reflashed and they said everything was good but it’s still reading 7 to 8 psi off. what could cause this bad computer? A non ho computer (wrong computer was put on it?)

You will have to explain to me what you mean by inside the box what is the jumper setting set to? I’m having a brain fart haha

So I have the same problem in my truck except that the reading is off by 10 psi I’ve tried two different boost gauges and three map sensors and they are all off I’m reading my boost off the horn. I’m going to get another sensor and higher quality boost gauge to tey and see if that’s the problem. Were would I check readings on the wiring?

Me78569 thanks I’ll order that and a 1/2” tee fitting and put install it. I just wasn’t sure so thanks I have had the truck a while but new to doing the whole mod thing. Adjusting the quadzilla is still tricky I don’t know what numbers to look for with having stock injectors with a bigger turbo.

Needs some help I was wonder what is need to read fuel pressure on the quadzilla adrenaline v2? And would I Want to read the vp44 pressure or the fass pressure? Anything’s helps and thanks in advance