i was just gonna say i had a bad o2 that caused the same code. glad you got it fixed.

 

The rear O2's are deleted. What differences does the vette ones have over any of them?

 

I am having the same exact problem on my wifes 03 yukon, I have a new O2 to change, but is it the one before or after the cat? mine only misses at a idle. and I always thought that 1 sensor reads at idle and 1 reads at WOT? am I wrong?

thanks

 

They both read at all times, and the fronts are the important ones.

 

ok so i guess I will change the front one right now and see what that does.

I am getting multiple missfire code and bank 2 lean code. already changed plugs and wires. bank 1 plugs look perfect, bank 2 plugs were very very black, (too rich). it only does this at idle, runs perfect on the highway.

 

def the front o2. the rears only monitor the condition of the cats.

 

I changed the front O2 earlier, problem solved.


idles perfect now.

 

Okay the light popped back on Friday I let it idle for like a half hour and I just drove it for a few miles and it kicked back off... Frikin strange.

 

Other than that, is she running good?

 

Yeah it does with or with out the light on. I got threw inspection so that's all that I was completely worried about. It took 4 times to get it to pass.