Hello everyone, i got some questions to ask about installing my air fuel ratio gauge. It's a auto meter sport comp a/f guage and i was wondering when you splice the wire into the o2 sensor will the check engine light come on? And my next question is how do i hide the wire so the dealer doesn't catch it when i take for warranty work??

 

1. the guage is useless because its not an accurate A/F meter
2. i advise not wiring by the o2 but by inside the car by tapping into the wire that goes into the ecu so its easier to run, faster to connect, and its the same signal.
3. sell that A/F thing and get a real A/F monitor like an AEM UEGO.
4. dealers in miami are stupid as ***** and probably will never know you tapped into it the first place. just hide the wire if you realy wana connect it by the o2.
5. the check engine like will not go on for something like that.

 

well put.

Only thing to add. You bought a narrow band A/F gauge. The tC needs a wideband with its own sensor welded into the s-pipe.

 

Thanx guyz, the reason i wanted to put it in is because i had the guage sittin there 4rm my old nissan so i was gonna either put it in or give to my friend with his mustang.

 

needs a wideband? Explain that. The only reason I could think for NEEDING a wideband is if you plan to tune the car yourself. As for those of us who just want a general idea of our a/f ratio, and plan on dyno tuning our cars, the extra money is unnecessary at this point.

Plus, you're supposed to tap into the o2 sensor on the header, because it heats up faster and gives you more accurate readings

I have an autometer narrowband in my tC, and can't figure out which wire from the 02 sensor to tap into. I assume (of the 4 wires) that it's the blue wire, but after doing so, my gauge still gets no signal. All connections are fine, but the dial doesn't move. Any ideas?

 

It wont work. It wont read anything worth knowing. It will show numbers, but they wont be your a/f ration.
What is the point except to just have some flash while driving?

 

well I'd like knowing if my a/f ratio is stoichiometric or not - I don't care if it's 14.1:1 or 14.6:1 - as long as it's stoichiometric.

Now that you're done bashing, let's get someone on here who knows how to install one so they can actually help those of us who need it.

 

watching

 

There is no bashing going on. And I deffinetly know how it is done. But hey man, do what you want. If you think it will work and wont listen to others opinions, why ask the question?

 

They are just trying to help...

Here is the reason your gauge will not work: The tC has a wideband sensor stock (for emission reasons if I remember correctly) and a narrowband gauge wont work because of the signal difference.

Narrowband = 0-1v
Wideband = 0-5v

And tcpete is right:
So this is our advice, and you'd be smart to follow.

 

that's all I needed to know - no one said that.

all I got was that its stupid to use a narrowband gauge. you ____ up your car and i'll ____ up mine.

 

We never said you were stupid. We said it wont work. No one flipped up your car, we were actually trying to save you from flipping up your own car. you asked for the advice, we gave it. said it wouldnt work. No need to get all mad about it.

So fro you to deduct from not hearing what you wanted to hear, that we dont know what we are talking about is wrong. The reason no one posted how to install it, is because there is no way to install it. Yes there is a way to hook up wires, but thats not how it is installed.

Its like asking how to hook up an intercooler on a non turbocharged car, yes you can put it on there, but it wont do anything.

Just trying to clear it up and show that not everyone is out to get you when you dont hear what you want to hear. best of luck with whatever you decide.

 

so my options are spend $350 on a wideband a/f gauge....or buy an $80 narrowband o2 sensor to replace my wideband sensor?

After shopping, I've found plenty, but they all come with 02 sensors...if the tC comes with a wideband 02 sensor, why does the wideband gauge need it's own sensor? Why can't I still tap into my existing one?

 

bump

 

Why would you bump this?

 

LOL I was wondering the same thing

 

 

sorry, i meant to say,

"hmm, good question. maybe somebody knows the answer to this one."

in regards to the following quote.
but i was on my way out the door.

 

Well the fact is you cannot replace the stock wideband with a narrowband.

To work a narrowband gauge in the tC you'll need to buy a narrowband sensor and install it just for the gauge. Not only would this be a waste in labor and money to fit all this in, but it won't give you anything more then flashing lights. Even to get a simple idea narrowband is far from good to use.

 

well, i asked this question awhile ago and was told that you can't just hook up a wideband gauge to the stock wideband O2 sensor because that it read current instead of voltage. But now that I think about it, I don't see how it can be true cause in the O2 skew table on the f/ic it feeds the ECU a false voltage not current. Which would lead me to believe that it actually is reading a voltage. Can anyone else chime in?