As it gets colder outside, it's become difficult to start my 95 Sportage each morning. It takes about 5 minutes before it will start, and I've got to let it warm up a minute or two more before it will idle normally. After that, it runs great once it's warmed up. The CEL will come on while it warms up, then turn off once up to temp. Could anyone suggest how I might fix the problem? The battery's in good shape, and the O2 sensor is a year old. I've never touched the MAF sensor, and it could use a new fuel filter. Thanks for any help.