O2 Sensor sharing
Thread Starter
Joined: Jul 1999
Posts: 12,088
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
O2 Sensor sharing
The O2 sensor on our cars are resistor-based right? So they cannot be shared between
two gauges, correct?
(want a fuel mixture gauge on the hood
for a later mod)
-- Joe
two gauges, correct?
(want a fuel mixture gauge on the hood
for a later mod)
-- Joe
Supreme Member
Joined: Jul 1999
Posts: 1,466
Likes: 71
From: Alberta, Canada
Car: 1989 Camaro-1LE
Engine: TPI(s)
Transmission: 5 speed (MM5, MK6)
Axle/Gears: 3.45, 3.73
The O2 sensors produce a voltage rather than create a resistance.
So, as long as your devices don't put a signifigant load on the O2 sensors, it should not interfere with the computer's readings.
I built my own O2 sensor a while back. Make sure you have a GREAT ground for you O2 sensor. I found that the ground on most automobiles are junk. I recall being able to turn my head lights on and off and make the O2 sensor jump.
The only way I got the ground fixed, was the run it right from the battery.
Just my 2 cents.
Mark.
So, as long as your devices don't put a signifigant load on the O2 sensors, it should not interfere with the computer's readings.
I built my own O2 sensor a while back. Make sure you have a GREAT ground for you O2 sensor. I found that the ground on most automobiles are junk. I recall being able to turn my head lights on and off and make the O2 sensor jump.
The only way I got the ground fixed, was the run it right from the battery.
Just my 2 cents.
Mark.
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