Speedo/OBC cal

[jeffro]

Hi,
I remember awhile back seeing a procedure to calibrate the OBC vs the speedo, but I can't find it anywhere. Ever since the battery was disconnected for the head gasket change, I've been getting slightly whacky readings.
Thanks,
--JEFF

[Javier]

http://home.iae.nl/users/bts/obc.htm