Got a battery question - Lateral-g Forums

71Nova · #1 01-21-2007, 09:04 PM

For Real?
Ok, Its a good idea to disconect the negative first and then the positive. Then just unbolt, swap batteries, bolt new battery in, connect your positive and then your negative.

novanutcase · #2 01-21-2007, 10:08 PM

You may want to find out of the ECU has a backup battery but I can't imagine it NOT having some sort of backup system like that!

**XcYZ** · #3 01-21-2007, 10:25 PM

If you car sits for long periods of time, I'd highly recommend a battery tender. It's $30 well spent.

**camcojb** · #4 01-21-2007, 10:52 PM

negative first as that kills the positive. The computer will retain it's tune, but will lose all the short/long term trims, etc., so it will re-learn the tune as you drive it again. Totally normal and you'll likely never even notice anything.

Do not disconnect right before a smog, or if you do drive at least 75-100 miles with varied driving parameters or more so the computer re-learns and resets codes.

Jody

**tones2SS** · #5 01-25-2007, 05:45 PM

Thanks guys.
Newbie here in that dept. I was worried about messing up the pcm/driveability of the car if not done correctly. Again, THANK YOU!!!!