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How many wires does the oxygen sensor have in a 1995 Chevy 1500 truck with a 5.7l V8 engine?

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Old 17 Jun 2012, 03:46 am
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Default How many wires does the oxygen sensor have in a 1995 Chevy 1500 truck with a 5.7l V8 engine?

How many wires does the oxygen sensor have in a 1995 Chevy 1500 truck with a 5.7l V8 engine?
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Old 17 Jun 2012, 03:48 am
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probably 4. some have 3.
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Old 17 Jun 2012, 03:54 am
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if it has a vortec 5.7 there should be a 4 wire unit
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Old 17 Jun 2012, 04:00 am
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4, one is the heater circuit, one is computer voltage , one ground and one signal return to the computer. usually 2 white 1 gray and 1 black
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Old 17 Jun 2012, 04:04 am
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some had 1 wire and some had a heated o2 sensor which was a 4 wire sensor
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Old 17 Jun 2012, 04:08 am
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Most of these only have one wire, purple in color.
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