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Thread: 4 wire Universal NTK Narrow Band O2 sensor wiring?????'s

  1. #1
    Lifetime Member GAMEOVER's Avatar
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    Question 4 wire Universal NTK Narrow Band O2 sensor wiring?????'s

    Can someone please school me on the wire color's coming out of a O2 sensor...Umm where do they go? New Sensor has 2 white wires, 1 Black wire, 1 Gray wire....OEM plug coming from harness = 1 Pink, 1 Purple, 1 Tan, 1 Green

    OEM
    Pink= Ignition
    Purple=High Signal
    Tan= Low Signal
    DK Green= Heater Low Control
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

  2. #2
    Lifetime Member Gregs's Avatar
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    Default

    black=signal
    gray=ground
    whites=heater

    03 Silverado 5.3 ECSB 4x4 Z71
    Comp Cam 206/212 .515/.522 112 lSA, hardened rods with LS9 springs

    2010 Tahoe VVT AFM 5.3
    Stock for now

  3. #3
    Lifetime Member GAMEOVER's Avatar
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    Sorry, still don't get it...I have 2 Signal wires(hi-Lo) 1 Ignition wire, 1 heater low control... What would be what?
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

  4. #4
    Lifetime Member Gregs's Avatar
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    ok yeah
    signal high=signal sent to pcm
    signal low= pcm ground for the signal wire^^

    i'm not sure on the heater but i would guess that ignition will be the heater power. i will guess again and say that heater low control is ground also... which makes sense i guess since the signal low was the ground for signal side of things, the heater low would probably be ground too i would grab a multimeter and check the heater low to see if its a ground

    03 Silverado 5.3 ECSB 4x4 Z71
    Comp Cam 206/212 .515/.522 112 lSA, hardened rods with LS9 springs

    2010 Tahoe VVT AFM 5.3
    Stock for now

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