Actualy I'm glad you did. I never did figure out what the problem is/was. I had the plugs changed which helped but was still there. Now that it is cooler temperture around here it is a lot better. A couple times recently at a stop light it started to stumble like the gas tank was empty. Putting it in neutral and reving it a littlle cleared it. I figured I need a new programmer. A vacuum leak as you suggested is possible I suppose. What is your O now?