I fired up the car this morning (pretty damn cold out)... and after the usual couple seconds of rough idle it smoothed right out....let it warm up a bit, went inside to grab something. When I got back in the car it was idling where it usually does (right around 500) but maybe just a bit lower and slightly rough and a check engine light popped on.
I lightly tapped the throttle and the light goes away... idle comes back down to what it was doing and the light comes back... I tap the throttle lightly again (just a blip, not even above 1k) and the light goes away.
Idle now sits perfect at 500 and the light never came back.
ONE NOTE: left my lights on at work last thursday... had to jump it. The engineers at work let me use the battery charger for the station vehicles, and the amperage the batt. was drawing didn't go down significantly after 4+ hours of charging.
Sound like it's time for a new battery? but wouldn't I get a batt. light and not a CEL?