What oil pressure gage is everyone using?
 

What oil pressure gage, sending unit, and sandwich plate is everyone using? I need recommendations. Buying tomorrow.

Pretty sure I have AEM 30-4407. It is tee’d into one of the hoses for my oil cooler.


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Oil pressure gauge. SpeedHut 0-150 psi. Any gauge you get HAS to read over 125 psi. Cold starts and high rpm will push the pressure over 110 psi.

https://speedhut.com/gauge-applicati...psi-w-warning/

Would it be cheaper to get an old google phone and use Torque/pro? I hear the sending unit near the oil filter is a switch not a gage??? Will Torque read actual real time pressure on a VQ? I am using for diagnostics only not full time, just street, not track.

Correct, the sending unit is a switch not a gauge. It’s worth the time to install an in cabin gauge. I like the security of being able to watch real time oil pressure.


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It's just a lot of trouble for once and a while.

By the time you react to an oil-pressure gauge, your engine will either suffer bearing damage or be toast.

In my early days I always had a lo-pressure light using a BMC Mini (remember those) oil pressure warning switch (because they were a commodity back in the day and triggered at 36psi) but now I have a Motec CDL dash, I have an alarm set in the dash that lights up all the shift lights in red and the ECU is set to read oil pressure every 10 milli-seconds which is every rotation of the engine at 6000rpm. If the ECU sees 2 consecutive readings at 36psi or below and rpms are above 2500rpm, then it implements a 2500rpm rev limit and wont permit more than 15% tps as it can react quicker than I can - given my visual reaction time is about 0.25 of a second (and believe me, I practice it), that is still 25 rotations of the crank before I'll notice it - ECU management is better (MOTEC M150)

For bling, go for it, to save an engine, not sure it will be much help

For me it’s good to monitor gallery gasket health since I have an ‘09 and haven’t replaced the gaskets. Too bad that there’s no way to have an ECUTEK tune react to low oil pressure like you’re describing on the Motec.


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There are many good reasons to go to a standalone. The only negative is the cost. It's not cheap.

Prosport EVO.
http://www.the370z.com/diy-section-d...ure-gauge.html

EcuTek is going to be adding CAN bus sensor input to the VQ37 platform.
This will allow oil pressure monitoring and RPM reduction to protect the engine. It will also allow ethanol content, fuel pressure or almost anything else as an input.

I have designed/built a CAN bus module and will be testing it on my car with Eugene once this update is released.

Wow this is exactly what I wanted to hear!!! (Did I miss this in your thread? Whoops…)

That will be a must add for my car when it’s released.


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The SpeedHut gauge has a low pressure and a high pressure warning that you can set to any psi you like. My low pressure warning is set at 20 psi. I have the high pressure set at 130 psi.

Haltech iC-7 haha. I had a VLS gauge and just programmed the voltages into the haltech dash.

Other than this post, I haven't mentioned it.
Normally, I like to have a running prototype before I say anything.

However, since I was getting some other circuit boards made, (GTR Converter!!!), I added a board that does "analog in" (pressure & temp) to CAN bus.

Once I'm further along with the local testing of the "GTR gauges", I'll assemble, program and test it on the bench.

Well you mentioned it on MYG37...so this will work with EcuTec only? I guess I'm going to get a gage then.

Here is what I use on my G37:

http://www.the370z.com/attachment.ph...1&d=1696619979

It uses the "GTR MFD gauges" that are part of the navigation system in 2010-2013 G37, 2010-2020 370z and a bunch of other Nissan/Infiniti vehicles.

As far as I know, only EcuTek will support a CAN bus input for a sensor.

For Bluetooth gauges, right now they work with our LCD Mini-dash and the GTR gauges on the G37/370 with navigation.
Down the road, there are plans to replace the Infiniti clock face with a high resolution LCD display and make it a "multi-gauge".
Data sources will be CAN bus and Bluetooth.

Nice my Prosports have the same and switchable white/ orange lighting so it matches the OE gauges as another option.

The SpeedHut gauges have 20 different faces that you can chose from. And a whole bunch of other options to chose from.

Soooo after driving this car for ~100mi after the R&R of gallery gaskets I got a bad miss and P0300 as well as P0021 but NOT P0524??? WTF is this all about? There is another person with this issue on MYG37.

I’m seeing CAM Position Sensor online…


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Rusty, about how long of a sensor cable do I need for an A pillar mount?

I would say 8ft. min.

Seems odd to quote myself.... Anyways, here is a small update:

This afternoon, I assembled the CAN bus sensor server and programmed it. It reads the analog sensor input, (pressure, temperature or something else) sends out the CAN bus data and works as it should. Fricken fantastic!

I've told Eugene and will be connecting with him tomorrow to see how/when testing with EcuTeck can happen.

Thanks for the update! A fellow Z owner told me that he already has an oil pressure input feature with his ECUTEK tune via RSenthalpy. Do you know how they’re doing this and/or if it is similar to what you’re doing?


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I do! They simply re-purpose an existing analog input: evap pressure sensor, MAF sensor (requires speed density), heated O2 Sensor 2 or the A/C pressure sensor.

Full docs here: https://ecutek.atlassian.net/wiki/sp...+Output+Hijack

This method requires something to be removed from its original purpose and re-purposed. I believe most use the EVAP (EcuTek calls it CPC -> Carbon purge canister) pressure sensor as it is the least intrusive.

The new method simply uses a module that can read the analog pressure/temperature sensor and do the conversion of "voltage to value".
For example with a 150 psi sensor sending 2.5v, equals 75 psi. (Transfer function is "sensor output voltage x 37.5 - 18.75")

After the value is calculated, some smoothing is applied (you won't believe how much oil pressure actually bounces around!) and sent out as a message on the car's CAN bus.
This is received by the ECU, EcuTek looks for a specific message ID and reads the value. Now it can make decisions based on the value

The biggest benefit of using the CAN bus as in input, is that it doesn't remove any functionality from the car and it can stay emission compliant.

PLUS it is much easier to install as it only needs to tap into 4 wires (ignition, ground, CAN H and CAN L) that are easy to access at the IPDM/ER.