Speedometer and techometer drop for a second while driving

SOURCE: 1996 Subaru Legacy No Power At All

Last night I checked the battery and it was still good. I disconnected and then reconn ected both terminals and that brought the power back. When I turned the key the power went out again. I repeated the procedure but did not turn the key. Instead, I took off the knee bolster and tried to wiggle the wires under the dash to see if I could find the source since it seems to be related to the ignition. Nothing cut the power so I started it up and it worked fine except for the check engine light which was flashing that says I have a misfire condition. I drove the car 25 miles to work this morning and will be taking it to the dealer for a better inspection.

SOURCE: '91 honda accord battery light on with new battery.

either your alternator has gone or your fan belt is not there which helps the alternator to charge the battery get a volt meter on your alternator to see if it is kicking out what it should be

SOURCE: 2004 Saab 9-3 Aero 2.0T Auto engine light on...

Hi,
Sorry but can be "100" problems,the way you describe,so the best you can do is take the car to same one who has TECH2 to read def.cods/values

SOURCE: disconnected/reconnected computer & 98 chevy cavalier wont sart

The computer needs to have a very good ground also check the wires going into the computer and make sure nothing came loose and there is no rust on the connections. If this does not correct your problem put the computer back in its factory location and try it

SOURCE: starts with boost then car dies after 1 km and won't start

once the car is started it runs off the alternator .. so even if your battery is bad the alternator will still run the car .. so it looks lilke your alternator is bad .. when you jumped the car you charged the battery a little but not enough to keep it going since the alternator is not charging . if you hook up a charger overnight then you might be able to run it long enough to get somewhere (garage) .. try to drive when you dont need lights .. those will run down the battery in a short time .. if you have a volt meter then the battery should read about 13.8 to 14.2 volts when the alternator is working properly (car running) .. if it reads lower (like 12volts or less) then the alternator is not charging .. some auto parts stores will test your system free ..