1uz-fe code 26

The check engine light on the car turns on and off inconsistently, and the diagnostic code that appears is 25, indicating an engine lean malfunction. The car also has a severe misfire, making it difficult to drive. When pressing down heavily on the accelerator, the misfire is especially bad...

My car throws a check engine light and code 25/26 air/fuel ratio lean and rich and cuts off my fuel supply! So I checked and swapped both precat o2 sensors and it makes no difference. I have loud exhaust leak after the cat where it connects to the pipe before the sub o2 sensor and also @ the...