Quickie TB Cleaning

[Greg Amy]

That's typically due to the auto-learn features of the ECU, especially
if you let the battery go flat. It's the idle-bypass valve (I forget
what it's called) in the intake manifold trying to figure out its new
"home" position...you could adjust the screw to set the baseline a bit
higher, but don't go too far or it won't be able to adjust it down far
enough to get you to the desired idle speed. - GA

> I've let SR20s sit for extended periods, and just about always had
> trouble getting them to start / idle.  Holding the throttle wide open
> often gets them firing -- which makes me think they're prone to
> "flooding" but I can't think of any place in there for fuel to puddle.
> And then they seem to require some driving time to "clear out" what ever
> was bothering them.