Pid that converts voltage to pressure

[aaronr]

I want to convert a/c pressure sensor voltage to psi. I looked through the existing pid and didn't find one.

[Laychut]

Hi aaronr,
There is a calc PID for converting voltage to PSI for engine oil pressure. I have attached my Calc PID txt with that calc in it. I would think that you could use the same principle for the A/C sensor

calc_pids.txt.

It is the bottom calc.

Cheers

[aaronr]

So my only question is 5v should be 325psi?

[Laychut]

I have attached a Calc txt file that only has the engine oil PID in it. I thought the first one might be a bit confusing.

Calc_pids_EOPS.txt

Cheers

[Laychut]

You need to know the range of your sensor. This will dictate what 5v equals.

I am by far NOT an expert on Calc PIDs. Below is a link to where I found the engine oil PID. Maybe these guys can give you better information.

joecar is good with calc pids.

http://forum.efilive.com/showthread....l-pressure-PID

Cheers,

[Laychut]

Hey aaronr,
I just found this link that may be helpful for converting your voltage. It also provides the PID to log.

http://forum.efilive.com/showthread....Pressure-PID-!

Cheers,

[aaronr]

Yeah I found that thread after I posted. Thanks for the help