My 2001 ES300 went from running smoothly on the highway to cutting out every couple of minutes for a few seconds. The engine would run smmothly between "cut outs" and there were no accelleration issues. The "cut outs" would then happen at any speed.
The Trouble Codes that showed up were: 1135, 1155, 1354, 1351.
Any help in what to do would be appreciated.