Holy crap, I JUST talked to the local crooks and had them code my Engine light for the very same reason, first, the EL came on and I had it coded like 8 months ago, said it was an O2 sensor. I figured hell I can do that so it was no biggie. Never got around to it, the light went out a few weeks later so I thought it was a fluke. About a month or two later I was having real probs with the engine, it would stutter and the idle would erratically rev and die. So I pulled over and let it rest, and it would work fine. I ended up having the sparkplugs replaced while the injectors were cleaned and a motor pump hooked up. After the cleaning and new electrodes, ( I had a Calc final so the plugs I figure what they hell Ill have em throw em in for me.) it still stutted for a while, then stopped, no light.
today lights back on.
Engine seems to ever so slightly falter.
Crooks throw a O2 sensor code at me again.
This is what Im going to do:
Banks CAT back exhaust, (headers too if i sell enough crack (Joke!!)
if the prob persists THEN I will get the O2 sensors, so we will see what happens.