Short term and long term fuel trim are the main ones that the PCM relearns.
You can't use PC's as a comparison...they're toally different animals. There's
no BAT, SYS, Registry, INI, CFG, CONF files, or Daemons to refresh. ;) PC's
(in general) are designed to to one job...input and output. The PCM's on the
vehicles monitor various sensors and change constantly under all driving
conditions. Input changes constantly and this changes the output as well. Add
a service pack to a PC...you reboot and it's done. Add a bigger bore TB to a
vehicle and it needs to relearn the loads based on various driving conditions.
Example: If you're driving on the highway for an extended period of time (with
light throttle) the computer will "tune" the vehicle for this (for optimum
performance and economy). Drive around town and those variables change. Stomp
on the gas all the time and the variables change yet again. The computer is
constantly learning and "tuning". The PC's don't do that.
- Bernd
> Are our Daks slow? Learners that is...
>
> Without confusing me to much about computer chips, etc - can someone give me
> a brief explanation of the "learning process" our trucks go through. We
> talk about resetting the computer after doing some modifications and then
> driving for awhile to let the computer "relearn". What is being relearned,
> and why the long drive? If I do a mod to my PC, I expect that it will take
> effect on the next reboot, why are auto's so different?
>
> Just wondering, and eagerly awaiting my next chance to take my Dak to
> school...
> Cal
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:59:09 EDT