Oil Temp Gauge installation
 

i m thinking to get the setrab oil cooler with mocal sandwich plate,but i want to see the difference before and after i install the cooler,so i want to install the oil temp gauge first,but i can't find any instruction on how to install an oil temp gauge (mechanical/electrical) in to the BRZ.like where to hook up wires and sensors.so can you guys help out here if you had installed one.thx

we already have one. its on the front of the engine under the oil filter

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soooooooooooooooooooo apparently "modified brz . com" is not allowed on ft86club

Easy

http://i58.photobucket.com/albums/g2...ps81461358.jpg

I use a blue tooth obd2 adapter + torque pro on Android; since as mentioned we already have a sensor.

The oem sensor outputs aren't very accurate. They're usually just used to let the ecu know when something is out of range (ie. the engine is cold, or its overheating). Especially since the OP is going with an oil cooler, he's gonna want a good aftermarket gauge and sensor (defi, autometer, etc.).
I don't have the specifics for installing it on this particular vehicle, but most aftermarket sensors are 1/8" npt and most oil filter sandwhich plates have auxilary 1/8" npt ports.
I'd recommend an electric gauge, unless you don't mind having an oil line running into the cabin, with potential for leaking all over your interior.
Just follow the instructions that come with the gauge you choose.

Citation Needed.

That said, you are probably correct. In my case, I just want to know the oil is up to temperature (Car actually warmed up). In this case, he may be looking for something more accurate...

Thx, That's what I meant.I wanna hook up an aftermarket oil temp gauge so I can read with numbers.and also wanna c How to hook them up.

Sorry,there is an app for android that can read oil temp in the car?

I agree. Why would anyone manufacture an oil temperature sensor that's not accurate? Let alone spec one?

I suspect the sensor is just fine; if there are any issues, they'd be with the data that comes through the OBD stream. Some cars don't even directly measure the oil temp, they 'calculate' it based upon other inputs (lots of GM cars do this).

Yes, it's called Torque. There is a pro version that takes custom codes, which for our car includes oil temp (confirmed by manufacturer too).

There is a whole thread about it, with custom codes and showing how people have tablets mounted to dash:
http://www.ft86club.com/forums/showthread.php?t=23530

I use:
[ame="http://www.amazon.com/Excelvan-Bluetooth-Interface-Scanner-Adapter/dp/B007P14NPU/ref=sr_1_5?ie=UTF8&qid=1374257972&sr=8-5&keywords=obd+ii+bluetooth"]Excelvan ELM327 v1.5 Bluetooth Mini Small Interface OBD2 Scanner Adapter Torque Android : Amazon.com : Automotive[/ame]

If you aren't building a track-only car and don't need multiple gauges displaying simultaneously, P3 makes a multi gauge that fits in your AC vent. It runs off the OBD port and looks dead simple to install.

I don't own one myself but got curious about it after seeing it in @ImperiousRex's build here: http://www.ft86club.com/forums/showthread.php?t=28008. If it's accurate and can auto toggle the display based on peak warning thresholds then it could be a solid solution for street cars seeing track use.

The dumb thing is they don't have a user manual available for download. It would be good to see the exact capabilities and limitations.

http://cdn2.bigcommerce.com/server40....1280.1280.jpg

More info: http://www.p3cars.com/subaru-brz-sci...tal-interface/

So How do u like it so far?accurate?

Without a tablet mounted properly or anything, it isn't that useful as an active gauge. I usually seat it in the phone holder with the oil temp at the top where I can see it; and I keep an eye on it when I'm first driving waiting for the oil temp to come up.

If I drive spirited; I'll check it to see if oil temp is getting high (hasn't yet so all good).

I really like it for being a < $20.00 solution to knowing oil temp. You really have to spend more on at least a dash mount for your phone to make it useful. I find it very accurate so far, and I like being able to review my trips. You can bring up a log of your trips and see them laid out on a map with your speeds at each point. It logs other stuff too, or you can turn all logging off.

It has a 0-60 timer, etc too. Also has the code scanner and a knock detector plugin. I need to spend more time with it; it has a lot of options I haven't explored.

cool,thx .for $20 i'll try it out.because all i need is an oil temp gauge to moniter and a timer for track use.does this app has a timer option if you know?

oh,so where do you hook up the adapter?

ok so why do you need a wideband o2 sensor to tune your car and not use the factory a/f meters? OEM builds a car for the masses, an enthusiast requires more exacting specs... I could go on and on about this, but I'm not...if you want a light show in your interior, just download a strobe app.

Both Torque and the gauge above use the OBD2 port and pull data from the factory computer. Torque uses an OBD2 to Bluetooth adapter where the gauge uses a cable for both signal and power. Data output should theoretically be identical.

Umm....huh?

Your comparison doesn't make much sense, it's not a question of accuracy. Your analogy is like saying the oil temp sensor only reads from 70F to 250F, and you want one that reads from 0F to 500F.

No the readings on oem sensors are not accurate in the sense that they are dampened. If you ever rode in a car that has an aftermarket water temp gauge for example, you will definitely notice how sensitive the aftermarket gauge is compared to the water temp on the dash which hardly moves at all.

All these OBDII sensor readouts that have been popular as of late are just hype, meaning if you want a "light show" (gauges that are barely useful), then by all means waste your money. If you are serious about knowing your engine vitals, then you will not be getting that information from your OBD port. This new trend reminds me of people installing narrowband O2 gauges years ago, thinking that they were actually useful.

Um, it's oil temp. We need to know when its reached a certain level. There is no light show involved here. I'm not going to spend hundreds of dollars to know the engine is warmed up. The idea that the data via obd2 is going to be off by a 100 degrees F is ridiculous.

You don't have any data or evidence showing a difference between odb2 oil temp and an expensive gauge; until you do, don't be so damn rude. Your implication of some kind of 2fast2furious bs is garbage.

Even if it was off by 10 degrees F, it would tell us if the oil was warmed up or if something was overheating.

Agreed with @GeorgeJFrick. While it's fair to claim there might be a discrepancy in accuracy, lag, update interval, etc. with OEM systems, saying all of them are nothing more than hype or a "fancy light show" is pure speculation without first providing hard data showing the exact deltas between OE readings and aftermarket mechanical gauges in our specific platform.

No one here is refuting the potential for inaccuracy in general with OBD2 output but what happens in other platforms is irrelevant. You need to provide data showing that the ECU output and factory sensor outputs in our cars are inaccurate, where they're inaccurate, and by how much.

So, please post some hard data from this specific car. Many here would love to see the data.

It's an honest question looking for an honest answer. :happy0180:

You're comparing apples to oranges here bud. It is very important to have an accurate, quick to respond a/f gauge for obvious reasons. Things like oil/water temp are clearly a different case altogether. If you think you're such an expert that you'll turn your nose up at relatively small discrepancies in measured vs actual oil temp with a small delay then clearly you up your own ass too far to even talk to. Using the OBD port to log max oil/water temps while out on the track is a smart thing to do, OEM or aftermarket. Feel free to spend the several hundred dollars to get a system that meets your needs for accuracy, I'm going to monitor my oil temp for ~$20 and it is plenty accurate.

Before I installed a Defi DIN-Gauge, I had a Scangauge in my car. I ran both for a day to see what kind of difference there was in their readings. Nothing. If there was any kind of discrepancy between the two gauges it was one or two degrees at most.

Thx That's what I thought.

Thx guys,Thx for all the inputs.

That helps rule out oil and coolant temp accuracy. Thank you. :clap:

sorry not trying to be rude. I came from having cheap gauge stuff in past cars, then had to spend money to replace those things, just trying to save other people the headache of buying things twice.\

BTW, I do have a cheap OBDII bluetooth adaptor and torque on my daily driver maxima. To me its basically a fancy version of whats already available on the dash. If you're not worried about accuracy, the OEM gauge cluster is perfect to tell you if the car is overheating.

The "damped' gauge you refer to is the coolant temp in most newer cars (circa ~2000 and up, very roughly speaking).

It's not the sender that's 'damped'...the gauge itself has a 'dead zone' around whatever temp is considered 'normal' by the manufacturer, where fluctuations of less than X degrees don't register on the gauge. The sender sends the information (in the form of fluctuating voltage), but the gauge is what flattens the response.

Without that, you see the temp climb from a cold start, then drop a bit when the thermostat first opens, then rise, then fall, then rise...on cold days in the winter, the fluctuations can be relatively dramatic. The story goes, for whatever it's worth, manufacturers got tired of explaining how the cooling system works when people brought their cars in for service, thinking it was a problem.

All my cars up through about '99 had 'working' temp gauges. All my cars post-'99, except for my Corvette, have the 'damped' gauge where it goes up to steady-state and just hangs there.

The Corvette has both a coolant temp gauge, and coolant and oil temp digital readouts, and they move around quite a bit.

The only cars I can think of made today that have an actual analog oil temp gauge are Camaros with the console cluster, some BMWs and Porsches, and maybe the Focus ST? I've not ridden in any of them long enough to pay attention to fluctuations on the oil temp gauge.

The OEM water and oil temp sensors are just thermocouples like every aftermarket one. The ECU uses fairly precise readings from them to make adjustments to timing, fuel, etc. Like has been said its the gauge which doesn't show accurate readings. I have an aftermarket oil temp and water temp sensor, reads the same as the OBD2 readings off the OEM sensors.

Hey,can u show me how to get the oil temp gauge out,can't find it.it only shows the coolant temp thx

It's outlined here:
http://www.ft86club.com/forums/showp...00&postcount=2

It is a custom PID (requires torque pro)
Originally Posted by andreyiv http://www.ft86club.com/forums/third...s/viewpost.gif
OBD2 Mode and PID: 2101
Minimum Value: -40
Maximum Value: 215 (this is just the maximum that this location can support, which does not mean the sensor can read that high)
Scale factor: x1
Unit type: C
Equation: AC-40 (no space between A and C; "AC" is the location within the response)
OBD Header: 7E0 (Auto also works, but seems to take longer)



Q. How do I add extra PID's?
A. Open the Torque app and then hit the menu button. Select "Manage extra PIDs/Sensors" (should be second from the bottom).

Hit the menu key again and select "Add custom PID". Enter the PID information provided (And a full and short name of your choice).

Hit ok. The parameter will now be available for logging and real time display.


The info was originally provided by others users and the original thread should be referenced/thanked...

Thx slot,I'll try that out.but sadly I used for a day,the check engine like came on.

I just used the thing to clear it hopefully won't come back on again

Depending on the bluetooth adapter you have this might happen - I'd check the code, I got one about network problems (really weird code) because I have a cheap chinese knock-off rather than a true ELM. You can probably clear the code and be fine (read it first, rule out something engine related though!)

So the Max value means the the Max temp u want the meter to read right?

you see no need to install gauges? OBD2 readings are well ?. I have problems with torque pro, disconnects. also it takes too long to connect.