Quote:
Originally Posted by WingZeroX5
If the battery is truly dead, there would be at least an attempt to crank. But who knows. Get the batt tested and charge first
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The "attempt to crank" is usually a click when the battery is too low to spin the starter.
However, that does not explain the car deciding to start later.
That said, given how funky these cars get when the battery gets old, I would probably go ahead and replace the battery. And register it, which the Carly app can do. (Although annoyingly, there doesn't seem to be a way to read out the battery status without resetting it that I could find - I had to break out ISTA for that.)
You should also start by checking your grounds on the car - there is a ground strap from the engine to the frame rail, driver's side. There's one from the engine harness to the strut tower passenger side. (Make sure that it's on the strut tower, not the positive terminal, which can cause funky behavior.) Also make sure that the battery is securely tightened.
Unfortunately, a *very* intermittent condition is hard to diagnose. You might have codes related to it, but there's a pretty good chance that these codes will have no relation to the actual issue.