Well, in January, my cel came on, got the code, it was 02 sensor. I cleared it with my programmer, and It hasnt come back on but I can smell gas every time its running, and my plugs have gotten a little darker, so I'm sure I should replace them. They have been in the truck since new in 03 Anyone have a reccomendation on the 2 I need as far as brand or anything? Will our connector support the heated ones? Im not splicing, just going to buy the whole damn thing, both of them and be done with it. Thanks for any reccommendations.