Originally posted by spankaveli
Could one leave the service jumper connected? Would that disallow the computer's control of timing? I know on m mustang, the to set timing you pull the spout connecter which in essence removes all computer control of the timing, then put it back in after the timing is set. would this be the same thing as the service jumper?
just for my info....
If you left the service connector jumped, your car probably wouldn't drive all that well. Among other things, jumping the service connector keeps the radiator fan from coming on(which is good when you're trying to maintain a constant idle while setting ignition timing, or trying to set idle speed). I would wager that jumping the service connector probably disables some other things as well, like VTEC perhaps.