Hello Scotty, It's me again with the Toyota Avalon. I changed the two upstream 02 sensors, and I…
It's me again with the Toyota Avalon. I changed the two upstream 02 sensors, and I changed the spark plugs to insure everything is firing good and not going to put carbon all over the new 02 sensors. I cleared the fault and also disconnected the battery to make sure everything was cleared. Started the engine, and D@&* it! ! ! After only 20 seconds the check engine light comes on with the same PO135 & PO155 heater circuit fault.
A buddy of mine told me his son had a fault cleared once and the same thing occurred to him. He was told to drive it for about 50 miles and it will reset. My son is going to take it to work tomorrow and Friday (it's 24 miles one way). If it doesn't clear, I'm at a total loss, and I don't know what to do.
Any ideas what I should check now?