Car has about 95k on her and today the check engine light came on. I have an air fuel guage and did notice that the guage stayed on lean for quite some time, oh and it was really cold her today. Live in Tampa FL. Anyway, when first starting the car in the am the guage will slowly go from lean to cycling back and forth (this is normal behavior). Today (as I had mentioned) the guage just stayed on lean for quite sometime, a lot longer that usual.
I guess my question is how should I go about troubleshooting this and what areas should I look at?
thx, Larry