Start up the car today at lunch after running some errands (ie engine warm) and I get a really rough start, acts like it doesn't want to keep running. In fact, it quit twice and the only way to keep it running is to keep some pressure on the accelerator. The Check Engine Light comes on. Running VERY rough. I start back to the office and not even 100 yards it starts to run fine, though it seems to idle a bit high at stops. I went thru the brickboad archives and several posts say the usual suspects are AMM, O2 sensor, vacuum leaks, etc. Now hear's the rub. Last night I put in a small bottle of injector cleaner, emptied the last gallon of gas from the lawn mower (old gas) can, then filled the tank to the top at the gas station. The tank was nearly empty. Can the injector cleaner and old gas have anything to do with this or just coincidence? I plan to clear codes, clear the Check Engine Light and see what happens. Anyone care to chime in? Sure would appreciate what you think I should look at first.