Oxygen Sensor

[StealthAlero]

Well i recieved all my gauges today and my pfyc 3 pillar gauge pod. But to anyone that has installed an air/fuel gauge on our cars, do you need to buy the oxygen sensor kit? Don't we already have them on our cars? The directions say you only need one if your car doesn't have one stock, which i thought ours did. I'm just checking before i go to work tomorrow and find out i don't have all the proper equipment.

[StealthAlero]

nobody knows

[chicken_dog]

It is attached to the solid purple oxygen esnsor wire. I know this cause i went through this before when i got mine installed.Any other questions about the gauges pm me and i'll see if i can help

[StealthAlero]

alright, JDOG did the same thing and heres what he said. For future reference for anyone.

Ok first i will tell u how to install the a/f. You will need to run a wire from the engine bay through the firewall into ur cabin. The best place is if u go under the steering wheel and pull ur carpet to this side, u can following the steering colum and there is a hole with rubber around it. Pull the rubber to the side and put the wire through there. I suggest a very thick wire, but not big. You will need to run the wire up behind the spark plug wires. ok now behind them there is like a black wire loom, if u look down there, there is a red clip, right next to it, is the wireloom.
Open that up and u will see a purple wire, just splice into that and connect the wire u ran into the cabin to it. Thats ur air/fuel line. You can run that line to the back of the gauge which should be labeled as ur a/f wire. The rest is easy, wire the power wire to a fuse in ur drive side fuse box and then find a ground and ground it.

umm best advice for ya is this, put all ur gauges in, even if ur not isntalling them
and then wire all the grounds at once and the powers, then leave the other lines which should be three wires cause u have three gauges, leave them like under ur dash, or something because then lifes easier to just hook them up.

Someone can post this in the how-to if they want.

[Oldsman]

well for a/f you can buy the pigtail from pfyc.com and it has the purple wire already spliced. but this hooks up to your downstream o2 best to hook up to youe upstream o2 it shows what is actually coming out of engine.

[Fast Eddie]

to bad both are poope since they are only NB sensors. You want a sensor worth actually putting a guage on get a W\B sensor.

[StealthAlero]

^^^ Thats why i'm sending my gauge to www.gadgetseller.com (http://www.gadgetseller.com). They tune your autometer air/fuel gauge to .01 for fine tuning during full throttle. So your gauge is actually really precise and accurate. But now i need to find a new oxygen sensor kit, anyone have any suggestions, or should i just go through summit racing and order autometers setup?

[Fast Eddie]

My point was the SENSOR is not accurate enough, not the guage. If you want to get a good UEGO lots of ppl like this one (http://suv.prostreetonline.com/pso/pages/productdetail.asp?productname=AEM+UEGO+Controller) from AEM, even comes with a guage. $425 is a pretty good price with the guage, you can get just the kit for about $100 less, w/o the guage too. The serial and user outputs are nice features too :D

[StealthAlero]

For the most accurate reading, yeah get a $500 oxygen sensor but for the next best thing, send your air/fuel ratio gauge like me to gadgetseller, they tune your gauge more precise for WOT (Wide Open Throttle) because thats what actually matters, you could care less what it reads during normal daily highway driving. Its only $25 dollars and its a 1 day turnaround, very fast. I suggest you check out the site.

[Fast Eddie]

obviously you know nothign about how to tune a vehicle. WOT is NOT the most important point on the fuel map.

What really matters IS what you see in daily driving and cruising since those are what will have the most toll on you engine. To obtain most power/efficentcy you must look at the A/F ratio throughout the fuel curve and see what yields the best response where.

Like I said before, if you want to put a guage on your A/F ratio then get a sensor that would give you worthwhile output, not the stock POS.

As for the site it looks like a joke put together to sell poop to 16 yr olds. Most sensors put out 0-5V signals and this site talks about tuning between 0-1V, so where id the other 4V go to? Further the the description in the theroy section is full of holes. like "However, due to the fact that combustion is never perfect in the real world, there will always be a small amount of oxygen left in the exhaust." this is false there may be absolutely NO O2 left. additionally the voltages in that section are not correct, see note above.

Why do ppl seem to think new guages are gonna give em a more accurate reading with stock sensors????