Throwing a P1133 code any thoughts
My car is a 97 formula 6spd, Gm 846 cam, supporting valve train, emissions legal full exhaust, I pulled the o2's out of another lt1 with lower miles than my car.
I have been told the issue code refers to a fuel/ air ratio problem. And many have recommended purchasing a tune, or simply replacing my bank 1 sensor 1 o2... what are your thoughts? Car is on a factory tune for the time being.
Car runs well but seems to be slightly down on the power you would expect given my mods... Thanks


