On a 2012 mazdaspeed 3 , what wires go to the upstream o2 sensor pigtail and what wires go to the downstream o2 sensor pigtail . the previous owner had took it upon himself to snip both sensor connectors and hardwire them directly to the o2 sensors but failed to secure them. this had caused them to sit right against the exhaust and cooked all the wires. i got new pigtails for them but i just dont know what wires go to which pins. ive tired looking online and through this and other forums for a diagram of the wires but havent been able to find anything that will help me in this situation. please help!!
josephrodrigueswashe
Joined
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60 Posts
i guess best bet is to goto the local parts store that has the sensors in question physically in stock... whip out your smart phone and turn on the camera... click click click and match it up that way since i kinda suck at looking at some stock pictures online then trying to match it that way
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