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Old 01-16-2013, 09:15 AM   #73
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Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 16,577
My Ride: 330CiC, M5, X5
Originally Posted by jpbutler1983 View Post
Test light sounds like a good troubleshooting tool... Where do you get one?
Test lights are actually very useful tools and most tool boxes should have one.

Any auto parts store should have them typically for under $10.

Here is an example -
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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