MoTeC Global Forum

Sorry if this is not the right place to ask this.
Here is what I want to do: I want to install a fuel pressure sensor on the car that will display on my C125. (not problem there), at the same time i want that same reading from the sensor to be fed into another device. Physically I can make a mini harness with a T that split into the two devices. But twill this work in providing the two readings?

Here is the specific example:
http://www.cobbtuning.com/products/fuel ... -2008-2017

This pressure sensor will connect back tot he car's ECU. I want to tap a wire into the C125 as opposed to installed a second sensor. the 5V and Ground will be provided by the OEM car's wiring.

What ECU is in the car? The best way to do it would be to install the FP sensor into the ECU, and then CAN the data across to the dash. Using the same signal split like that leaves the possibility of erroneous values being reported, and depending on what the ECU is using the sensor data for, potential engine damage.

Its the stock ECU.
Thank you. I was afraid that was the answer. Is it possible to connect my C125 to the cars CAN with a stock ECU?

There should not be any issue sending a 0-5v signal to another device.

But what is this mystery "other device" ?

its just a factory open port on the ECU that is repurposed to read a value. The kit above allow you to run 93 and E85 with different maps selected by the car depending on what it senses. Don't ask me more about this it works, =) that is all I know.