O2 sensor voltage range?

[nova]

What is the voltage range of an O2 sensor for the standard ones on the OBDI systems?

Also what condition produces which voltage?

In other words will a rich condition produce 5V and a lean condition produce 1V or what?

[Ttop34]

Take a look at this web page, it goes into quite a bit of detail about the o2 sensors. http://www.zx2racing.com/mods/mods_mil.htm

Anouther good thing to know though, what year model do you have? There is a hunch that the 2000 V6 has a different o2 sensor than that of previous years or of V8's. Just a hunch so far though.

[nova]

<blockquote>quote:</font><hr>Originally posted by Ttop34:
Take a look at this web page, it goes into quite a bit of detail about the o2 sensors. http://www.zx2racing.com/mods/mods_mil.htm

Anouther good thing to know though, what year model do you have? There is a hunch that the 2000 V6 has a different o2 sensor than that of previous years or of V8's. Just a hunch so far though.<hr></blockquote>

Thats extremely helpful. Thanks a lot. I'm looking at a project where a slightly richer mixture is desirable and am trying to figure out how to fool the computer into thinking its slightly lean so it will enrich it.

BTW I have a '94 Camaro.

[viper98885]

With the single wire O2 sensor like the 3.4L has, you can modify the O2 to get better readings. You will need a 3-wire O2 sensor, Bosch number 13077 and the GM wiring harness for the 3-wire hookup. You will replace the single wire O2 with the 3-wire. With a free-flowing exhaust, the single wire O2 sometimes doesn't heat up enough to take a good reading. The three wire O2 sensor is heated so you will get a much better reading with a free flowing exhaust. One of the three wires is a 12V+ wire, another a ground and the other is a data wire. After I wired mine up, it ran a lot smoother, especially at WOT when the exhaust is really flowing. If you need any help with this setup, let me know. I can take pics or send you detailed instructions.

[nova]

<blockquote>quote:</font><hr>Originally posted by viper98885:
With the single wire O2 sensor like the 3.4L has, you can modify the O2 to get better readings. You will need a 3-wire O2 sensor, Bosch number 13077 and the GM wiring harness for the 3-wire hookup. You will replace the single wire O2 with the 3-wire. With a free-flowing exhaust, the single wire O2 sometimes doesn't heat up enough to take a good reading. The three wire O2 sensor is heated so you will get a much better reading with a free flowing exhaust. One of the three wires is a 12V+ wire, another a ground and the other is a data wire. After I wired mine up, it ran a lot smoother, especially at WOT when the exhaust is really flowing. If you need any help with this setup, let me know. I can take pics or send you detailed instructions.<hr></blockquote>


e-mail coming your way viper

[ May 01, 2002: Message edited by: nova ]</p>