I have just gotten the timing fixed on my car every thing is fine its running great but it idles low. i have a mazda mx6 2.0 96 auto. my car had been sitting for like 5 months cause of the timing problem. when i bought the car i changed nothing in it but the water pump altenator and altenator belt. the wires look old could this be the reason. i just had a brand new exhaust system put on so i dont think its that. i have changed no filters so that could be it, or can it? it idles at about 1500 rpm when cold but once warm and u start driviving it changes to about 350. it dont shut off but does do this. can anybody help me out!