victor13b

I need to know where is the pressure sensor or vacuum sensor read to rx8 CPU? I need to know because I have torque app and in the gauges no read vacuum/boost .and same problem in the oil pressure gauge

Carbon8

iTrader: (4)

Their is not a MAP or a vacuum sensor, infact most NA EFI cars nowadays don't use those. We also do not have an oil pressure sensor.

No sensors no data hence gauges won't work.

victor13b

my car is modifiedwith rew engine..somebody have the app installed with OEM rx8 accessories to test read vacuum?

Carbon8

iTrader: (4)

OE ECU does not have the capacity to interpret vacuum as I previously stated.

Torque app reads only data on the OBD bus, it cannot read data that the car is not set up to receive.

You will need to instal and actual gauge if you want to a vacuum gauge

Not sure how much more I can break it down for you.

victor13b

]OE ECU does not have the capacity to interpret vacuum as I previously stated.

Torque app reads only data on the OBD bus, it cannot read data that the car is not set up to receive.

You will need to instal and actual gauge if you want to a vacuum gauge

Not sure how much more I can break it down for you.[/QUOTE]

so how he can't to in that old car?

Carbon8

iTrader: (4)

Couple of ways to go about it, all of which require a lot of programming ability and electrical work that is not worth it for one gauge IMO

The problem in your application is you are trying to source data over a CAN bus system but then add in your own data signals that work independently. You would need to incorporate all of your signals over one communication system then set up the app to interoperate your signals.

Carbon8

iTrader: (4)

The car above the owner ran all his wanted sensors to a micro-controller that he then programmed to interoperate and encode which was then sent to a Bluetooth adapter that was paired to the phone.

Loki

iTrader: (1)

If you read the comments under that Beetle video, it says..
"
The engine has standard VDO senders for oil pressure and oil temperature. Cylinder head temp is measured via a thermocouple under the #3 sparkplug. Intake air temp is a standard GM sensor. Voltage is measured straight off the battery. All the sensor data is sent to a microcontroller for some maths and then sent via bluetooth to the phone where it is shown and logged on the Torque app."

So yeah, the dude built the whole thing himself, there is no ECU.
So.... you just have to do that!

nycgps

iTrader: (1)

rofl, u really got a REW into the 8 and u can't figure out how to get Vacuum?

FAILED

victor13b

he...I know where is the vacuums but the problem is how the OEM rx8 CPU get the reference from engine vacuum. remember I remove the rx8 engine and rew engine have different plugs and sensors