[V8] 2ns Running Rich

[S_Matus]

I have failed to get my car to pass emissions.  I replaced the 
Plugs(they were a wide gap), rotors, caps, Air Filter and the head temp sensor. 

NOTE: the rotor  Bosch #04170 part firts perfectly and only $4.22 @ 
autohausaz.com.

I replaces the Ox sensor only 12,000 mi ago.  Could it be bad so soon?  
What is the Bosch part number for the 4 wire ford replacement? I'll but 
another one.

*** -> I have some gremlins with the instrument cluster, could this be a 
source of the problem?  Does the ECU use signals from the IC?

Any advice is appreciated.

Scott.
'91 V8QM
'03 RS6
'07 GTI

       

       
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