been doin some reading up and studying for my ASE, and a question came to mind...
on the 87-95 tbi, it utilizes 2 o2 sensors, 1 at the driver side exhaust manifold, and the other at the y pipe...neither of wich are after the cat, i know gm probly spent countless hrs of research back in 86 to come up with the tbi fuel injection... but i got to wonder, how efficient is this design?
if i were to move the 02 sensors, 1st at the y pipe (so to read both manifold exhaust readings rather than just 1) and the other post cat... in theory should i see better fuel milage, and better throttle response?
on the 87-95 tbi, it utilizes 2 o2 sensors, 1 at the driver side exhaust manifold, and the other at the y pipe...neither of wich are after the cat, i know gm probly spent countless hrs of research back in 86 to come up with the tbi fuel injection... but i got to wonder, how efficient is this design?
if i were to move the 02 sensors, 1st at the y pipe (so to read both manifold exhaust readings rather than just 1) and the other post cat... in theory should i see better fuel milage, and better throttle response?