Should you disconnect only negative?... only positive?... or both?
Negative first, always...it will prevent arcing that may occur if you disconnect only the positive. Disconnecting only the negative will suffice...just make sure you secure it away from the negative post and away from metal. If you want to, you could do both terminals to be sure the system doesn't get powered up by accident.
Should the ECU also be disconnected anytime you disconnect the battery?...or only when doing certain procedures?
You don't need to connect the ECU unless you are hooking up another power source...doing the battery is sufficient.
The ECU is located where on drivers side?...(The two huge connectors on the firewall?...or the three smaller connectors on the washer fluid reservoir?)
Near the three connector deal - in that metal plate looking thing, I believe.
How long should the battery be disconnected for, in order to "reset" the computer?...Several minutes? Overnight?
Not sure exactly how long, but I've had my battery disconnected for about 5 mins before and everything seemed to reset, as the tell-tale horn honk went off when I reconnected the battery.
Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "HOLY $HIT...WHAT A RIDE!"
Last edited by ColinW; 09-15-2008 at 05:54 PM.