O2 sensor question

[BOWEN, SCOTT M. (JSC-CC)]

Bruce,
I talked to Jim Wolf and they said that just "Y"-ing the signal from the O2
sensor can cause the ECU to make the car run Richer.
I have an extra port in the exhaust Manifold for the "Air Induction Valve"
on the '91 Manifold, but the AIV is coming out and the port for it
is...14MM, just right for an O2 sensor. I am leaving the one  wire unit for
the ECU and installing a 3-wire in the new hole for my A/F Meter.

That was the plan anyway...I have a new 3-wire unit for some where and
wanted to put it to use...
 
Scott Bowen
Bastard Motorsports Engineering
Houston, TX
281-244-9669

-----Original Message-----
From:	nacelp [mailto:nacelp at bright.net]
Sent:	Tuesday, March 21, 2000 4:04 PM
To:	diy_efi at diy-efi.org
Subject:	Re: O2 sensor question

Are you sure you need to add one?.
You do realize using a switching O2 sensor isn't the most accurate way to do
things.  They degrade with age, and output varies with EGT.
Bruce


> I am dropping a new motor in my '91 240SX this weekend and I am looking to
> install a second O2 sensor to drive my A/F meter.
>
> Can some one tell me the pin out for a 3-wire Bosch sensor?
>
> Thanks!
>
> Scott Bowen
> Bastard Motorsports Engineering
> Houston, TX
>
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