qiuck question about hooking up an air/fuel gauge

[BLLDOGG]

i know you have to hook it up to an o2 sensor, but i was wondering. i have the pacesetter headers and there is an o2 sensor hole in front of the cat and it came w/ a thing to plug it. i was wondering, could i go buy a new sensor and put it in that and then hook up the guage to that? i figure it would be better to do it that way then on one i really need and mess it up and send wrong signals to my computer. or should i get it as close to the engine as possible to get the best readings? is that right? would it get better readings closer to the engine?

[viper98885]

You could use that one. When you buy and O2 sensor for it, get one from a 93 3.4L V6. It is a single wire O2 and will be a lot cheaper (about $21) than the 4-wire O2s that they are using now. Plus, then you will only have one wire and won't have a bulky harness.

[ravenp]

I'm thinking of hooking up a guage as well, but have been told the o2's on our cars aren't really all that accurate...

Opinions?

ps...dont' mean to sabotage your thread, but i think it's relevant.

[BLLDOGG]

its all good^^^ it would help me out too ;)

[BLLDOGG]

Originally posted by viper98885:
You could use that one. When you buy and O2 sensor for it, get one from a 93 3.4L V6. It is a single wire O2 and will be a lot cheaper (about $21) than the 4-wire O2s that they are using now. Plus, then you will only have one wire and won't have a bulky harness.

hey thanks.


can anyone confirm this?

[nikon]

yup, thats how I hooked mine up(single wire), just a 20$ bosch sensor, I had to get a new bung welded before my cat though...is this hole on just one side, or at the Y-pipe???...one side would give you improper readings...only problem with the single wire sensor is it's not heated and will take a little bit before you get readings from it [img]smile.gif[/img]

[BLLDOGG]

its at the y-pipe. after both sides have come together. yeah, i know it wont give good reading until warm up

[viper98885]

You could also get a 3-wire O2 sensor from Autozone (Bosch part #63077). One wire is a date wire, one is a positive 12V wire and the other is a ground. The sensor has a heater built into it. You will also need the GM wiring harness for a clean installation. I have the number for it somewhere so if you decide to go this route, let me know. This would heat the sensor up right away and will give a more accurate reading than the single wire O2 sensor.