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Re: Lambda sensors - Where, Why and how Much ?



At 07:53 AM 6/8/00 -0700, you wrote:
I don't know what you call the 4th wire, but there are 2 whites, to which I hooked up +12V and ground, the black wire goes to the ECM as the signal for the sensor, and the grey wire gets hooked
to ground, also.

Squash

--- "Edward J. Malkiewicz" <krazyed@worldnet.att.net> wrote:
> Is the 4th wire for an external O2 gauge? How do you have the connector
>     wired on the harness side?
>
>         Thanks,
>             Ed
>
> -- One of those wires goes to the Ho2s [ Heater ] One of the ground wires is redundent.

        Len


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