DIY-WB construction question

[Mark S. Riley]

I think you are referring to the kinda dogbone shaped thing in the middle of
the wires. Has a clamp on the upper end of it. That is a rubber gromet for
keeping the wiring off the exhaust on the Honda this was made for. On the
plug facing up, there is a squarish block beside the orange and yellow
wires. This is where the cal resistor lives. Yes, you could measure the
resistor and put one of like resistance on the circuit board. This is how
NTK calibrates  different sensors so the circuit will respond the same if
you had to change the sensor. Like as in killed it with leaded racing gas.
New sensor, new cal resistor to make it read correctly. You could put a
socket on the board and make the resistor a plug-in. This is what Bob R
mentioned a while back. I found a 22 gauge 5 conductor cable over at the
local CB shop and a paired red/black 18 gauge power cord for the heater
circuit. Bought 30 ft of each for 2 DIY-WB's for $20.00. Taped them together
about every 6". Made the power wires about 4 ft long so the box can sit in
the passenger floorboard like BC Roe's pictures and get to any conceivable
fuse box for power. Need to take some pictures and post them up somewhere.
Tomorrow. Mark
----- Original Message -----
From: "Brian Renegar" <thomas.renegar at nist.gov>
To: <diy_efi at diy-efi.org>
Sent: Sunday, September 02, 2001 11:51 PM
Subject: Re: DIY-WB construction question


>
> >The plug on the sensor is actually an 8 pin unit. 5 are used for the
heater
> >and sensor, 1 is blanked off, and the last 2 are where the cal resistor
is
> >located. It works. Mark
>
>
> Ok, so the cal resistor is located in the connector?  Then what is the
> silver crimped cylinder on the wires in this picture:
> ftp://diy-efi.org/pub/diy_efi/project_files/diy_wb1/wb-sensor.jpg  I
> thought that's where the resistor was located.
>
> Also, can the resistor be moved from the sensor to the board, or is it
just
> better to run all 7 wires out to the sensor?
>
> Thanks,
> Brian
>
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