Date:         Wed, 16 Feb 2000 10:21:22 EST
Reply-To:     EUROMOG@AOL.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Wessels <EUROMOG@AOL.COM>
Subject:      Re: Does the ECU remember? Learn? Or simply React?
Content-Type: text/plain; charset="US-ASCII"

In a message dated 2/16/00 7:34:22 AM EST, Wolfvan88@AOL.COM writes:

<<
 Does the ECU remember the signals that it received during operation from
 various sensors when the power is off and use those for the next restart?

No.

 OR is does the ECU only act upon the signals from various sensors it receives
 during current operation and upon restarts?

Yes

 Uses the current settings not remembering the former settings.
  >>
No.

The ECU does not have adaptive learning like some of the more modern cars. It
does have a memory of values sent by various sensors. I.E. if a sensor all of
the sudden starts to send bad information the ECU will ignore that and go
back to the last known good value and use that in a fixed state. When you
turn the engine off it wipes the slate clean and it starts all over again.

John Wessels
European Motorsport
Livermore, CA
http://www.euromog.com