Purchased an Avalon. Drove it home and parked it. Next day while driving to work, check engine light comes on. Seller claims first he's heard of it, sends me replacement parts in the mail. Parts do not fix problem. Mechanic noted previous coil was super glued together and half the bolts on the back side of the engine were unbolted. Someone had been in there before for this problem. Vehicle was dumped on unsuspecting odtr. Check engine light comes on about every 75 miles like clockwork once cleared. Be careful on odt, every once in a while one will slip through the cracks even with the feedback system.