Diesel Particulate Filter pressure measurement

[richfinn]

A question for Diesel Technicians

Any recommendations for a pressure gauge or manometer suitable for direct pressure measurements at the DPF sensors??

This is mostly to prove bad sensors/ash accumulation so I guess it would need to be robust enough for the heat from the exhaust etc.

I have used a low pressure tyre gauge in the past but looking for a better tool!!

 

[bcschief]

That's normally done with a scan tool you can also read temp's inside the dpf

 

[richfinn]

That's normally done with a scan tool you can also read temp's inside the dpf

That's generally what I do, but I want something to verify the scan tool live data is correct occasionally

I can apply pressure with a Mityvac and see the voltage change on the DPF sensor, but finding what voltage corresponds with what pressure is a bit of a PITA

 

[engineer2]

Would a mechanical differential pressure gauge work?
https://www.dwyer-inst.co.uk/Product/Pressure/DifferentialPressure/Gages/

 

[richfinn]

Would a mechanical differential pressure gauge work?
https://www.dwyer-inst.co.uk/Product/Pressure/DifferentialPressure/Gages/

I'm sure it would, I will have a look into it, thanks