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how can i connect air/fuel ratio gauge to 3B 20vt, i got one wire from gauge?

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Old 11-06-2008, 09:27 AM
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how can i connect air/fuel ratio gauge to 3B 20vt, i got one wire from gauge?
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Old 11-07-2008, 01:40 PM
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Default You want to connect it to the signal wire from the O2 sensor.
If the O2 sensor is a 3 wire there will be two white wires and one black. The black is the signal wire.
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