Quote:
Originally Posted by Memphis370Z
Whether you do the work yourself, or take it to a shop, just remember to remove the O2 sensors BEFORE tackling any of the bolts, especially with an impact wrench. Otherwise, most likely, the sensors will get damaged.
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This is wrong, I hear this a lot and its a myth.
Back in the day when there was resistor type 02 sensors, they would get damaged from impact wrench's. This day and age they're a heater type 02's. They still have a resistor, but completely different style.
I own a exhaust/mech shop, we never remove the 02's, ever.
Inless there a resistor type o2.