New O2 sensors
10-08-2009, 11:10 AM
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New O2 sensors I am replacing my old [2-1/2years] Bosch 13111 O2's, with new ones. Should I disconnect the battery before switching them, or does it matter.When I put them in, I put in the Headers, and the Battery was disconnected at that time. 
Thanx.
Thanx. 