[Diy_efi] One wire o2 sensor to four wire sensor

[Mike Hudson]

----- Original Message ----- 
From: "Steven P. Donegan" <steve at donegan.org>
To: <diy_efi at diy-efi.org>
Sent: Saturday, June 02, 2007 3:28 PM
Subject: Re: [Diy_efi] One wire o2 sensor to four wire sensor


> Your ECU won't understand a wideband O2 sensor - my suggestion would be
> to just mount a ground lug between the O2 sensor and the bung hole and
> make it a 2 wire sensor. Simple, cheap, and should eliminate any fun
> re-engineering...

I believe the AC Delco AFS-75 or NTK 21006 is a four wire narrow band 
sensor.

I don't know if the voltage at the same AFR is much different than the 
original single wire and a four wire?
/diy_efi