Rich, I had a similar problem about a year ago. The car would start and run, but the acceleration was terrible. While taking it to the shop, I noticed that it had low voltage, 9 and below, but at times would surge up to 12 and the car would run fine. It turns out the alternator was going bad. Evidently the fuel pump wasn't able to get enough power to pump with the low voltage when I hit the accelerator. I had the alternator replaced and have not experienced this problem since. Brian VIN 1597