so wednesday night i went to the motorplex as usual, took the supra cos i could... it started fine on the way to work in the morning, and again after work... then when i got to the track, i turned it off to sign in, and it wouldn't crank again... just cranked slowly and then stopped... i got it inside, and tried to start it a few times during the night, but it wouldn't turn over...
got home tonight expecting to need to charge the battery to find out whether it was dead... anyway, turned the key tonight and it fired right up, after sitting since wednesday night... so now i'm back to square one...
the terminals were a little loose, so i tightened them tonight, but it had fired before i did that... and was charging at 14.5 volts with no accessories on and 13.6 with the headlights on highbeam and the stereo cranked right up...
so now to test it out, i guess i have to go drive for about half an hour, shut it down and see if it fires again...