I also had a problem with the engine quitting while driving. I tried some of the solutions posted, such as cleaning the pins on the plug-ins to the ECM. That worked for a while, but after a few days, it would start to quit again. I finally cleaned them again, but this time I put Di-Electric grease on the pins,then plugged them in. I've been driving it for a week now,and it hasn't stopped yet. I think that is the solution. The grease makes a better contact and keeps the pins from corroding.