Last night my Check Engine light came on in my MY01. It currently has 71,000 miles on it. I checked the oil level which was fine. Could it be time for a catalytic converter, possibly a new O2 sensor, any guesses?

 

Get the Code 1st. Don't clear the code hoping the problem will go away. Check out the CEL sticky at the top of UTH.

 

could be any one of the hundreds of codes. get it pulled then look at the CEL list and try to match it up. If not, post it here and maybe someone will know what it is.