OT: Dreaded CEL in my DD, Got the OBDII code Options

[flipb]

My daily driver is a 2007 Kia Rondo, 2.4L 4-cyl. I bought it new and I've put 50K miles on it.

About a week ago, the Check Engine light came on. I decided it was time to own an OBDII code reader, so I went out and bought one at my FLAPS.

I hooked it up and it gave me the code P2187: System too Lean at Idle Bank 1

I presume the "Bank 1" part is the default for an inline engine.

I figured it was an anomaly and cleared the code. Within 2 days, the Check Engine Light was back on, and giving the same code. This time, I didn't clear it (so the light is still on every time I drive... much like every NYC taxi.)

I can discern absolutely no difference in the way the engine's running, sounding, or driving. I suspect the weather may be a factor - both times the light came on, it was a fairly cold morning. I'd be more concerned if the diagnostic code implicated a particular faulty part, such as an O2 sensor.

Should I worry? Should I clear the code? Should I get to a dealership soon, considering there's a 10yr/100Kmi powertrain warranty?

[aircooledtechguy]

When I got the same code on a Ford minivan years ago I assumed the O2 sensors and the EGR (well I was getting those codes also).

$300+ in parts and no change in anything. Turned out to be a vacuum leak at a 90 degree elbow on the manifold. (IMG:style_emoticons/default/headbang.gif) Grabbed a piece of fuel hose laying around the floor of the garage and instantly it ran better and the codes cleared, never to return again. (IMG:style_emoticons/default/dry.gif)

A can of carb cleaner with the thin tube attached will help you find vacuum leaks. Spray around ALL joints, seals and seams in the intake system. If the rpm momentarily pick-up, there is a leak. Good Luck!!