Quote:
Originally Posted by 01OldsAleroGt
well scanned it today... its all pointing fingers to being catless.... the sprurattic switching of the O2 Sensors... which they are reading both the same due to the punched out cat..is causing the ECU to dump more and more fuel into the system... so i'll def be investing into my cat and exhaust very VERY soon... YAlero.. you'll be gettin your money to ya as soon as i get it !
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bringing this back from the dead to tell you that "sprurattic switching of the 02 sensors" is normal while cruising. if it wasn't switching back from 0-1000mv (usually you'll see something like 80, 940, 420, 880, 17, 780 - you get the point) then something is wrong with it. it is supposed to switch from lean to rich constantly, around the switchpoint (ive seen anything from 450 to 550 depending on the vehicle and its calculated load)