Joy's 2010 Kia Soul has developed a weird problem.  It did it once several months ago, then again several weeks ago, then after the last three fill ups.

It runs fine.  Stop and fill up . . . then it won't start unless you hold the gas pedal down a little.  Once it starts, it won't idle for about 30 seconds to a minute . . . then it's fine until the next fill up.

I've searched the internet and the closest thing I've found was a discussion about a somewhat similar problem with a 2006 Kia Rio.  The solution to that problem was replacing a purge valve for the fuel canister.

Thoughts?  Ideas?  Wild guesses? 

my guess is if you check the faults you have a large evap leak and intermittent rich codes

Thanks Travis!

I'll swing by Autozone my next trip out and get them to check the codes.  My CEL came on the first time it did this, then went out a couple of days later.  When it did it a few days ago, the CEL light came on again and once again went out a couple of days later.  When it started doing it every time, the CEL came on and stayed on.

The purge valve is 50 bucks and looks like one double wire plug and two vacuum hoses.  Famous last words, but if that's it, it should be an easy fix.  This is the first "trouble" we've had with it.