I have a mazda 626 2001 with over 172,000 miles on it. I just replace the front Cat it went bad on me. Now I'm having idle problems it feels it it is missing when it seat idle it is ok and feels there that it is missing. Once you put it in gear then the idle will drop very low and the car shacks really bad and when you come to a stop and live the car in gear the idle will drop too. I had my transmission replaced a year ago and I took the intake manifold off and cleaned it about a year ago too. I have had this problem for about a year and it is really starting to **** me off. Please help.
Thursday, December 2nd, 2010 AT 4:48 PM