Well my CEL will come on if the car is in accessory (dash lights, radio etc) The codes is 174 and 171. It would make since that it is lean because der the motor isn't putting out emmissions at all. But Last week my tour had somekind of a quirky grinding. I'm really lost and I noticed his post and figured I'd ask. I'm bring the car in today to play with it. Right now the snow is melting off and my dad is snow blowing our driveway so I can get his tauros out and my tour in.