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Old 11-18-2012, 11:21 AM   #17
Registered User
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 16,577
My Ride: 330CiC, M5, X5
You need to read all the links in below in my signature.

Note to the wise: 02 sensor and MAF replacement should be the LAST thing considered and performed. You will likely have plenty of other problems to address before you get sensor replacement!

If you are using anything other than a computer, you will not see the links in a signature, smart phone apps do not display signatures.

You can have all the tools in the world, but our eyes and your brain are the best diagnostic tools available.

The good news is most of the obvious problems are well documented and can easily be visually inspected.

Good luck!
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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