Threw CEL, But Car is Normal...

[Flash]

Tonight I went out for a light cruise, just to find a good spot to take pictures. At no time was my car ever close to WOT. I was never in the boost either. I finish my pictures after taking them while my car idled for like 8 minutes. I got in and I have a pretty CEL.
I get my car home and all my gauges look fine. No fluid or smoke coming out of anywhere. I check my logger and it says: Fuel Trim (bank #1). I check my STFT and its like 5-6%. My coolant temp was fine. Everything seemed fine.
I cleared the CEL, but I'm not sure if it's still going to haunt me. I'll try taking my car for a spin tomorrow in the day time.
Help?

 

[blackGSX2g]

I used to get that code all the time when my front o2 sensor (bank 1) was on the fritz. Hook your logger up when your driving and see if your o2 values are cycling. It would also be a good idea to log your fuel trims to make sure that they are what they should be.

 

[Flash]

Just went for a drive, went WOT. No check engine light. I was checking my logger at idle and while cruising, and my 02 values were cycling fine.
I didn't pay much attention to my fuel trims, but I remember seeing some like -2%.

 

[talnteddriver29]

Try re- tightening the caps