I am at the end of my rope with this damn car!!!! Everyday I have a problem with my car starting so I have to let it sit for 30/45 minutes before it wants to fire back up. Then when it does fire up the service engine soon light comes on, I shut the car off and then quickly start it back up and then the light shuts off. I have taken my car to countless mechanics and they cannot find any problem. I have replaced the ECM, and spark plugs. The diagnostic comes back perfect everytime. If anyone has any idea on how to solve this problem PLEASE contact me using the send comment link. Thank you for your help and stay away from the Buick LeSabre!! (Unless you want to buy mine - real cheap)