hey guys
i had abit of a search but couldnt find the answer i am looking for...
i have read in few of the threads to reset your ECU
few questions

WHY: what does it do by reseting?
HOW: how do you reset it?
WHEN: when should you do this is it something you should do?

Resetting is used to delete engine management system faults detected by the ECU ie: dashboard check engine symbol light stays on.

Reset is by disconnecting the battery negative cable for at least 10 seconds followed by reconnecting the battery and allowing the engine to warm up and idle for at least 10 minutes.

Is usually done when trouble shooting / effecting repairs ie: replacing system sensors

Note: If the fault has not been rectified or there are multiple faults then the check engine light will keep coming on until all faults have been rectified.

Cheers

cool. just read it in few threads and was wondering

Resetting is not necessary unless you have had problems. Often car idles roughly after a battery change etc, until ECU "re-learns" - this is why the "idle 10mins" suggestion.

Another effect for battery disconnected can be the auto-transmission brain-box loses its settings as well (its an "adaptive" box, so some parameters are set by your driving style). If you ever have unusual shifting after a battery disconnected, search in here for a re-learn procedure for the Auto - involves a series of "accelerate steadily to 60kmh" runs. Its a genuine Mitsi Service Bulletin that is in a couple of threads at least - Search should find it if you need it.

does anyone have a hack to manually set the shifting points in these gear boxes

does anyone have a hack to manually set the shifting points in these gear boxes

Would be awesome if you could set the power mode button to change the gears at like 5000rpm...