Hi
I have a 2003 ranger 2.3 4x2.The engine runs good in warm or cold weather when driving in heavy rain.If I am driving in cold weather runs good.If I drive in cold weather and it is snowing it will miss and buck.The engine does not throw a code at all. thank you for any ideas

 

If its bucking and NOT throwing a code, its probably a TPS sensor. Go the the junkyard and pick one up and see how that goes.

its easy to change with just a screw driver.