I apologise for the very basic nature of the following questions
I've been through the evoscan website, and have found snippets of relevant information, but I'm still a little unsure how to proceed.
Normally I'd find the spec sheet of the individual sensor used, which normally has a formula for converting the 0-5 or 0-12V analog reading into a digital output (e.g. speed, temperature, etc.).
If the sensor spec sheet isn't available, how can I convert the sensor signal to a meaningful digital output? I've used generic (i.e. not designed for the evo) digital speed displays in the past, which just connected to the road speed signal wire and gave an accurate digital read out. Where is the logic for this conversion?
Is there a listing of the stock sensors, their anolog voltage range, and a formula for their conversion?
Coolant temperature: 0-12VDC, x*5.5 = Temperature F
O2 Sensor: 0-12VDC, x*2.4 = AFR
Similarly, are the ECU outputs documented anywhere? For example, the Tach signal out of the ECU.