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O2 Wiring In A Vx

Discussion in 'ECU's, Electronics, and Tuning' started by xj0hnx, May 6, 2003.

  1. xj0hnx

    xj0hnx I wanna be sedated VIP

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    The VX has seven wires in the o2

    1)WHT
    2)GRN/WHT
    3)BLK (1)
    4)YEL/BLK
    5)ORN
    6)ORN/BLU
    7)WHT/BLU
    8)--------

    B16A(3) has four

    1)GRN/WHT
    2)WHT
    3ORN/BLK
    4)YEL/BLK

    Ok,now how do I wire these two together to get rid of CEL 41?
     
  2. pills_PMD

    pills_PMD Super Moderator

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    http://www.hondaswap.com/~pills/obd1guide.html

    that tells where all the O2 sensor wires go for an obd1 4 wire.

    i read on honda-tech that the VX sensor is a wideband... anyone want to back that up?
     
  3. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Not exactly what I was looking,but it can help.

    About the o2 being wideband,maybe since the motor is pure economy,and wouldn't that maybe help in the emissions?
     
  4. HardLowrdRanger

    HardLowrdRanger Member

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    Yes, the VX came with a Wideband O2 sensor... You must be using the P07 ECU?
     
  5. xj0hnx

    xj0hnx I wanna be sedated VIP

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  6. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Here is what I'm working with,

    [​IMG]

    I need to know what wires I need to combine,eliminate,run extra,whatever.

    Anyone know?
     
  7. pills_PMD

    pills_PMD Super Moderator

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    can you get a 4 wire O2 sensor?
     
  8. xj0hnx

    xj0hnx I wanna be sedated VIP

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    I have a 4 wire o2,it is the VX harness that has the 7 wire plug.So need to color match the four wires and then deal with leftover three.The four should be easy,it's the other ones that I am not sure about.
     
  9. pissedoffsol

    pissedoffsol RETIRED

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    no-- what he's saying is, but a 4 wire 02 sensor... it will have the right plug... and then just put that in your manifold.

    you cannot run a 5wire on a 4 wire system.
     
  10. xj0hnx

    xj0hnx I wanna be sedated VIP

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    My manifold has a four wire o2 sensor in it.

    My harness plug for the o2 sensor is the VX seven wire (Cali model has four :( )

    Anyway the Civic Helms has a nice chart of teh o2 wires and where they change colors in the cabin and where the pinpoints are for the o2 in the ECU,but I can't find the same in the delsol Helms to match up the B16's o2 to the wires on the VX harness..
     
  11. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Bump,still trying to figure this one out.
     
  12. pissedoffsol

    pissedoffsol RETIRED

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    the VX should be a 5-wire.. not a 7. im not sure what you have
     
  13. xj0hnx

    xj0hnx I wanna be sedated VIP

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    I'm just going by the Helms,And in it,I don't even see a five wire,just the Cali. four wire and the other seven wire.And since the plug in my car has seven,I am taking that as true.Anyway I'm gonna try and just run the four to the ECU,and move em around till I get em right.unless someone jumps in with some genius idea.
     
  14. pissedoffsol

    pissedoffsol RETIRED

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    if you have a 4-wire o2 (which you need... you can't use the 5 wire)
    simply run it striaght to the ECU, or trace the wires...

    O2 Sensor Input - WHT to D14 (needs to be a shielded wire)
    Heater Control - BLK to A6
    Sensor Ground - GRN to D22
    Sensor Voltage - BLK to A25 or B1 (both are 12-volt source)
     
  15. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Lookin' like that's the way,that's the info I need to trace them.Hopefully the colors are the same going from the ECU to the harness.
     
  16. pissedoffsol

    pissedoffsol RETIRED

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    they probably aren't, cuz you used the vx harness if im not mistaken?
     
  17. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Yip,the harness he gave me with the motor wouldn't plug in to the car,thinking it was an OBD 0,but who knows.I've got the wiring chart for the VX so I can trace which wires are which.Just the delsols manual doesn't have (that I can find) the same wiring trace chart.
     
  18. Jokerluv

    Jokerluv Rockin da Z1 !!!!

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    mine only has a 5 wire
     
  19. pissedoffsol

    pissedoffsol RETIRED

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    holy shit- jokerluv! i haven't seen you post in like a year!
     
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