Originally Posted by
JimBlake
Code 41 shoule be pretty much limited to the heater circuit of the O2 sensor. Not a whole lot of unrelated problems can set that one off.
Since you had exhaust work, you might want to look at the wiring down at the sensor. They may have pulled on the wiring, rubbing thru some insulation somewhere within the wiring that belongs to the car.
What are the other smog numbers? Sometimes you can play them off against each other. For example, advancing your spark timing a little bit can improve CO & HC while making NOx worse.
I was getting the CEL code 41 BEFORE I took it in for the exhaust. There's the possibility that I did something when I changed the O2sensor back in May when the 41 code first started. After a month the 41 is back, same symtoms. Coasting in gear with low RPM's.
I got a good a sticker but the numbers were worse after the super and the injector cleaner. I'm in need of a timing belt so that will get done next and hope that improves the problem because I'm prolly not getting the best gas mileage right now.