N14 celect plus low voltage to pressure sensors

[wellrun]

2000 vovlo vnl with n14+.. getting low voltage to my pressure sensors only.. tried test ecm same problem also new harness

[Moose]

Have you pulled each one individually to see if it returns?

[wellrun]

Yes I've pulled. All sensors and it won't go away... Temperature sensors have 5volts... But 4.55 on pressure sensors when all are disconnected... When you plug sensor the voltage drops... Even tried known good sensors from another truck

[wellrun]

Is it safe to connect the barometric and boost sensor from my temp sensor 5v suply

[Moose]

(11-03-2019 )wellrun Wrote:  Is it safe to connect the barometric and boost sensor from my temp sensor 5v suply

I wouldn't... Looking at it again check the wiring and any connectors going to the coolant level sensor. I'm looking at the diagram again and I cut it short. They show to use the same 5VDC supply & ground. I can remember some of the older resistor style level sensors would fail internally, leak coolant back into the harness and cause all kinds of gremlins.


  Celect_Plus_3666146_Rev_4.pdf (Size: 263.3 KB / Downloads: 303)

[wellrun]

Hey brother I've install a brand new harness from Cummins an I still got problems... My truck has the 2pin coolant level sensor... Still can't see why my voltage has dropped