I want to be able to read the analog signal 0-5v, from a throttle position sensor (basically a pot). The signal is used by the car's ecu so the method I use to get the signal to the teensy 2 cannot influence the signal as it is seen by the ecu.
The teensy 2 will be powered by another 5v supply used by a sensor that input has been disabled so I am good as far as power goes, I just need to figure out the signal.
With the analog signal from the tps I will write a small sketch to make another pin on the car's ecu go to ground which will in turn switch maps to a more economical one. I do not have the code skills to hack the car's ecu to find this feature so one solution is the teensy 2 along with a simple code.
Any help would be most appreciated.
For the curious here is a link to the open source software that is loaded into the car's ecu. http://www.romraider.com/forum/viewtopic.php?f=36&t=7594
Thank you,
Paul
The teensy 2 will be powered by another 5v supply used by a sensor that input has been disabled so I am good as far as power goes, I just need to figure out the signal.
With the analog signal from the tps I will write a small sketch to make another pin on the car's ecu go to ground which will in turn switch maps to a more economical one. I do not have the code skills to hack the car's ecu to find this feature so one solution is the teensy 2 along with a simple code.
Any help would be most appreciated.
For the curious here is a link to the open source software that is loaded into the car's ecu. http://www.romraider.com/forum/viewtopic.php?f=36&t=7594
Thank you,
Paul