Question about 2001 Ford F150 Styleside SuperCrew

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F-150 oxygen sensor diagrams

The O2 sensor has 4 wires coming off it,2 white, 1 black, 1 gray -- I'm trying to find out which wire goes to the computer? I need to hook up an EFIE FC-120 fuel controller-- can you help me in any way?? Thanks

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  • Smoknpipe1 Jun 29, 2008

    I added a hydrogen generator to my truck and need to get this sensor hooked up, is there a way to hook it up on top anywhere instead of under the engine where the sensor is before the cat. converter?? Thanks

  • Smoknpipe1 Jul 01, 2008

    ok still need help, followed sensor wires up behind engine, then they went into a mass of other wires, no way to trace them from there, plus not enough room to do anything, now on my F150 on the air system right past where the air filter goes is another sensor with 2 wires , can I tap into that sensor to hook up the EFIE or do I need to wire it off the bottom sensor? I know there is a solution out there, so someone with an F150 or knows them can help , just have to get the EFIE hooked up--- Thanks


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Will help u in a moments time

Posted on Jun 29, 2008


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Ford focus 1999

Pin --- Color --- Stripe --- Function

Harness 1

1 --- White --- Black --- Left front +
2 --- Gray --- Black --- Left front -
3 --- White --- Purple --- Left rear +
4 --- Gray --- White --- Left rear -
5 --- White --- Red --- Right front +
6 --- Gray --- Red --- Right front -
7 --- White --- (none) --- Right rear +
8 --- Gray --- (none) --- Right rear -

Harness 2

1 --- (not used)
2 --- Black --- Green --- Radio Ground
3 --- (not used)
4 --- Orange (thin) --- Black --- Radio Illumination
5 --- Green --- Yellow --- Radio switch
6 --- Black --- Yellow --- Radio Ground
7 --- Orange (thick) --- Black --- Radio 12V

Harness 3

1 --- White --- Green --- Speed sensor
2 --- (not used)
3 --- (not used)
4 --- (not used)
5 --- (not used)
6 --- (not used)

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