??? about 3 wire o2 sensor

supraman7mgte

Shut up,bitch!!
Apr 1, 2005
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Sunny California
Okay,just got a replacement 3 wire ox sensor and plan on cutting the old lead of and soldering on the new.
Logic tells me that the blue wire goes to blue,and i'm fine with that,but now I have 2 black wires with no identifacation. Does it matter which balck wire to which?:aigo:
 

MDCmotorsports

Offical SM Expert: Turbochargers
SM Expert
Mar 31, 2005
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Indy 500
www.MDCmotorsports.com
Nope. Both are power wires on a DC system. The o2 sensor doesn't care which one goes where, just as long as they are connected.

Also, blue does go to blue (its signal.)

HTH,

~Jon