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4 wire 02 Sensor - 2004 F150
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bkvollmer Offline
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Post: #1
4 wire 02 Sensor - 2004 F150
Mike,

I received the dual deluxe yesterday! THANKS! I have 2 sensors, 4 wire each.

I was under thr truck this AM, and disconnected the 02 sensor, probed all 4 wires. Definitely found a 12 volt+ wire (Heater power) Found NO wires that report Zero volts. But found one that seemed to fluctuate a lot. I need to definitely find the sensor wire, I'm not 100% confident.

Any comments?
07-01-2008 09:32 AM
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big-daddy Offline
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RE: 4 wire 02 Sensor - 2004 F150
bkvollmer Wrote:Mike,

I received the dual deluxe yesterday! THANKS! I have 2 sensors, 4 wire each.

I was under thr truck this AM, and disconnected the 02 sensor, probed all 4 wires. Definitely found a 12 volt+ wire (Heater power) Found NO wires that report Zero volts. But found one that seemed to fluctuate a lot. I need to definitely find the sensor wire, I'm not 100% confident.

Any comments?


Red/blk and gry/Lt blue wires on the first plug on the left, facing the ECU in the eng area
07-01-2008 11:13 AM
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bkvollmer Offline
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RE: 4 wire 02 Sensor - 2004 F150
big-daddy Wrote:
bkvollmer Wrote:Mike,

I received the dual deluxe yesterday! THANKS! I have 2 sensors, 4 wire each.

I was under thr truck this AM, and disconnected the 02 sensor, probed all 4 wires. Definitely found a 12 volt+ wire (Heater power) Found NO wires that report Zero volts. But found one that seemed to fluctuate a lot. I need to definitely find the sensor wire, I'm not 100% confident.

Any comments?


Red/blk and gry/Lt blue wires on the first plug on the left, facing the ECU in the eng area


Thanks! Where do you get that info so fast?
07-01-2008 11:16 AM
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