Model ES 300 (1993) with 80K miles:

Battery failed (original battery). Installed a new battery and engine starts fine. However, engine will not idle when releasing accelerator ---just dies. Does anyone have any ideas?

I know of no security feature (other than the stereo and airbag systems) that would care that the battery was disconnected.

I checked for disconnected or cut vacumn hoses, wires, etc.

I did have maintenance done a few days before the battery died: one CV boot was replaced because it was found defective during a state safety inspection.

Coincidences do happen but this is weird.

 

Does it constantly happen or is it rare that your car would not idle? It happened to me 2 times, but if I hold accelerator for a while, it would idle up fine. I haven't looked into that yet since it doesn't bother me much, but I would definetely like to have an answer on why it is happening.

 

It is not intermittent. Replaced the battery because the old one gave up the ghost. I did not have any problems with the car otherwise.