I have several questions. Does the 2006 760li have 2 different computers that have to be read separately when you check the codes. I had Advanced Auto check the codes on my 760li because the check engine
light was on. It showed a P2189 code "System Too Lean at idle Bank 2". Their reader did not show anything else, but my mechanic said that he was getting the same reading on Bank 1. The online forums all show this code to commonly be the Crankcase Vent Valves, but because my mechanic is seeing the code on both banks, he does not believe these valves are the source of the problem because they would not both go out at same time. Any thoughts. Also, I actually went ahead and changed the 2 CVV valves. If these were the problem, will this automatically make this code go away, or do I need to reset the computer in order to clear the code?
JA: Does the light stay on, or does it blink?
Customer: It stays on
JA: Are you fixing your 760li yourself? What have you tried so far?
Customer: That is it. I have had work done by a mechanic, but when I got this code and the forums pointed to the CVV's, I replaced them because they are pretty simple.
JA: Anything else you want the mechanic to know before I connect you?
Customer: The only other code that came up was the P0441 which I believe is being caused by the charcoal canister. There has recently been a gas smell in the cabin and trunk, so I think the carbon filter has become saturated. That is it.