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Old 11-15-2012, 10:20 PM   #3
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Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 16,610
My Ride: 330CiC, M5, X5
Suggest you read the first link below in my signature.

Are you sure the engine is running rich or is the term that the deviation is too rich??

Many times the codes are a bit misleading.

Rarely do you actually have a rich code, the are almost always too lean.

What scan tool are you using?

What are the short and long term fuel trims?
Solve your misfires, lean codes, rough idle -

Fuel pump failures -

Temp Info -

Hidden OBC Menu - Check Voltage, Temp, Fuel Level -

E46/E39 GM5 Door Lock Info -

Lower hose temp switch O-ring - BMW #13621743299
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