I am trying to create an “Engine Oil Pressure” gauge in Torque Pro app.

However, I have not been able to find the PID # for Engine Oil Pressure on a 2004 Ford F150 5.4L Triton engine (or ANY other Ford). I have a “Torque Scan” and over 200 PIDs respond to Torque commands. But in all my research, I have been unable to match up any one them for Engine Oil Pressure.

It does not make sense that the ECU would not be reading analogue engine oil pressure. There is Engine Oil Temperature (in Degrees) and I have found some much less important PID’s such as:

Power Steering Pressure Switch Input HIGH/LOW
Power Steering Pressure Input VOLTS
A/C Head Pressure Switch Input OPEN/CLOSED
Generator Field Control Output %

and several other ones that seem less important than that – even almost stupid.

Can ANYONE / ANYWHERE point me to a PID # (or range) for Engine Oil Pressure – or is oil pressure unimportant on a Ford? [ You supposed to just go by the “toy gauge” on the instrument cluster until the engine craters ] Lol

BY THE WAY. There are listed FORD DTC codes ( P0520 thru P0524) relating to Oil Pressure – So WHY doesn’t the ECU output the actual analogue reading on SOME PID #?

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54371019

Seems crazy, but oil pressure is not one of the standard OBD-II PIDs. It’s not just Ford.

Ford (and most automakers, not to mention the vast majority of customers) doesn’t care what the actual pressure reading is… Only that it HAS pressure. They all have a minimum pressure, and that’s the point at which it trips the pressure switch, but most Fords do not have a sensor to indicate the variable pressure.

@sakooon;

Thank you for a thought provoking response. It could be taken multiple ways. (no offense taken.)

But I quote from my April 7 post –
“… it borders on negligent misrepresentation to take a mechanical switch closure (oil pressure SWITCH) designed to switch between 5-7 psi, and display the closed condition as mid-range on an analogue gauge on the instrument cluster marked “L” | “H”. Especially when it requires apparently 20 psi or so reliably operate the VVT system.”

Also,
[ Quote WkikpediA ]

“Role of the 1.5 sigma shift

Experience has shown that processes usually do not perform as well in the long term as they do in the short term.[5] As a result, the number of sigmas that will fit between the process mean and the nearest specification limit may well drop over time, compared to an initial short-term study.[5] To account for this real-life increase in process variation over time, an empirically-based 1.5 sigma shift is introduced into the calculation.[5][22] According to this idea, a process that fits 6 sigma between the process mean and the nearest specification limit in a short-term study will in the long term fit only 4.5 sigma – either because the process mean will move over time, or because the long-term standard deviation of the process will be greater than that observed in the short term, or both.[5]”
[End quote]

Hope all the FORD engineers read this thread.

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54371019

My 91 explorer has a gage but is hooked to a switch. Apparently too many people didn’t know that it’s normal for oil pressure to fluctuate, so they put in one that is “binary”

2001 Ford E150 Econoline van also no Oil Pressure option seen

I would think that something so crucial as Oil Pressure would be available always

So no way around it I cant add Oil pressure huh?

My ’96 Explorer LTD V8 had the stupid switch wired to the gauge. There was a hack to install a proper sensor, short/remove a 10 ohm resistor on the dash circuit board and make the needle actually work.
I am told newer Fords etc with a Bosch based variable oil pump should have a proper (3 wire) oil pressure sensor. The sensor supplies a signal to the computer to control the output of the pump. That signal can be accessed and read as oil pressure.
I have a OBD II gauge that reads it and an app for my BMW x5 with the N55 engine.