Dain Bramage
Well-Known Member
my brother has a 93 toyota with the 3.0. i recently did a tune up on it (cap, rotor, plugs & wires), and noticed that one bank appeared to be running lean, i believe it was the bank on the passenger side. i recall someone saying something about a crossover pipe between the fuel rails that clogs and causes one side to run lean, which causes the single 02 sensor to read the whole engine running lean, and richen up all 6 cylnders. is this right? and how can it be fixed? school me. :corn: