Hey to all the guys in the club. I have a quick question my car is pulling up a service engine soon light, i went to auto zone and they said it was the bottom O2 sensor. I have an O2 simulator in place of that bottom O2 sensor. Is it just as simple to replace the simulator or put an O2 sensor there or could it be something else.

You need to know what the code is.

That way you can decipher it w/o trying to sell yourself a part that doesn't need to be replaced. Run back down and have them pull the code..then give it to you. Post it up and we'll help from there.