Equations, Equations and more equations.

[Jens Stobernack]

I've been reading this list for awhile now and was wondering what
equation you are trying to solve when using a computer to run your
engine.

Essentially you are trying to determine when to fire and how much fuel
to deliver.

What I've gotten sofar is that
    - O2 readings regulate mixture.
    - Knock and RPM control timing.
    - MAF or MAP readings control fuel delivery.

Can someone publish the formula(s), the variables and what type of
sensor is used to determine that value?

Thanks alot for you time,
Jens