I keep Googling these and can only find "lean condition" and have had others post up much more detailed information on these. Where are you guys getting all this information from? It is not on *any* of the 15 or 20 Google hits I have read through. Just the same vague bit, that a lean condition exists and the computer is using more gas to compensate.
I was told by the dealership that the four new oxygen sensors they put in were "probably" Bosch.
So after paying them an obscene amount for four plus installation I ponied up another $135 for four of the correct NTK sensors.
And when I pulled the old (new) ones, all four were NTK.
I drove about 150 miles with many restarts, several of which were cold restarts. Late last night after the TJ had cooled down I restarted and allowed it to warm up. And the same two codes reappeared.
So obviously it was not the Bosch sensors.
I need to know what the several possible causes are for these codes as well as how to track them down so I can get to work. I want this FIXED!
By the way, the mini-cats up by the manifold are sort of barrel-shaped. This is merely a sleeve or cover that is (I guess) welded in place over the actual cat. My front sleeve (or cover) is loose. I can slide it up the pipe about an inch.
Does this merely protect the underlying cat so that if it becomes detached it is okay, or is this integral to the system and maybe the source of my codes?
Please do not guess if you do not know what part I am talking about. I can easily add a photo if need be. Just let me know.) Only answer this particular question if you actually know the answer, as I do not have any time left now to waste in running down false leads. (The other stuff can handle some surmise and guessing, though.)
My annual summer unemployment is over and the symphony season starts back up on Monday night, so I am now out of time for wrenching and have to start driving this TJ about 800 miles per week until next summer.
With that in mine, these codes are worrying
me! I still get about 17 mpg on the highway, though, so I was pretty sure the sensors were bad. Obviously I was incorrect.
I am starting to stress over this one, guys...
THANKS for any help you can give me!