i'm trying to connect my o2 sensor but there's 4 wires: green, white and 2 blacks. i don't know which one is what. can anyone help me? thanks in advance for you tips.
i got a bosch sensor. it has 2 white wires, a grey and a black. on the direction, it says the black is the signal wire, the whites are the heater wire and the grey is the ground wire. what the green, white and blacks from the car?
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