93 LeSabre Custom. My check engine light came on today. It is not on all the time. I do not have access to a tester just yet but here are a few things the car does. When the light comes on, if i accelerate it goes out. It doesnt have to be floored. Just when i accelerate. Then i can be cruising along with the cruise control on and when the light comes on the cruise stops working and the torque converter unlocks. Any ideas anyone? Thanks.