I've been having a intermittant SES that seems to be staying lit more consistently. I'm also having a "Engine Failsafe Prog" message intermittantly. The engine seems to be cutting out at very low RPM's or just off idle, sometimes it almost seems as if it sputters on application of the throttle as well as when I remove my foot from the pedal- but never when the RPM's are up. I took it to a shop that insisted there were no codes. I then took it for a second opinion at another reputable shop and they also said there were no codes. They suggested I start with a fuel filter. I installed the new filter and nothing has changed. Any help? I feel like it's almost undrivable.