Hi all I have the above named vehicle, the problem is it is flooding
the left bank of cylinders and heating the cat up, i did a full tuneup
with new distributer, new cat and o2 sensor on the left side, there are
no codes being tripped, and the data stream looks ok, both o2 sensores
are working fine, also changed the mufflers (wnated to be sure there
was no exhaust restriction) the egr valve seems ok and the fuel
pressure regulator also does not appear to be leaking, also tried
another computer, so what am I missing? I have not been a GM tech for
over 10 years so this is just being a thorn in my side and i realy do
not want it to go to the dealer,thanks in advance for any help