thecruzs2007@yahoo.com

so i was wondering with wire do i tap into on the o2 sensor..i have a green,black and white wire...help? thanks..

axegrinder87

what brand is the gauge? either way id assume green is o2 and white is 12v. but, you know what they say about assumptions..............

thecruzs2007@yahoo.com

its an autometer..i got tha gauge through a buddy for free so no instructions.. / :

but if i splice the wrong wire its no big deal rite? as long as i patch it up rite..??

jasoncrashtech

i'm guessing your talking about a four wire o2 and not a 5wire vx , hx. in the case of the four wire o2 sensor it would be the white wire. that will display the sweep on your narrow band

thecruzs2007@yahoo.com

no i have the d16z6 its 3 wires..

axegrinder87

what series? i have the carbon fiber but the wires are red/black/purple.

tazeat

A/F gauge with stock narrowband.

thecruzs2007@yahoo.com

thats the color wires i have on the gauge but on the o2 sensor i have green black and white.. so is that bad stock narrowband?

axegrinder87

more bling than anything. but i got one too so..............
you'll only get an accurate reading at WOT

now i thought you were talkin bout the wires on the gauge. so what you should do, is run the purple to the wire going into the ecu, much easier than running a wire through the firewall and into the sensor wires.

heres a thread with a pinout for the p28 ecu you got, pin d14 is what you need to connect to.
https://honda-tech.com/forums/tech-misc-15/need-p28-ecu-pinout-fast-944353/

tazeat

wat?

No you won't it's pretty much always accurate, it just doesn't tell you ****.

See
http://www.team-integra.net/sections...?ArticleID=390

axegrinder87

well maybe im high but every narrowband a/f gauge ive ever seen bounces all around from oscillation until WOT where itll hold steady.

thumper64

The ECU has no clue what's going on unless you're very close to stoichiometric. It's like running around with a paper bag over your head with a nickel sized hole to see out of.

Get a wide band or sell the gauge and buy more NOS stickers.

tazeat

bouncing around = closed loop ~stoich from 14:1 to 15:1 give or take. WOT you will likely be rich since you are now in open look but here is where your narrowband doesn't tell you ****, all it says is that it is somewhere richer than 14.7:1 which doesn't amount to anything. The A/F gauge is supposed to tell you how rich, with a stock o2 that is not going to happen.

Ie at WOT on high boost engine if you are 14.5:1 you are WAYYYY too lean, but guess what your silly narrowband still just says "rich". In other words, why the need for a gauge?

axegrinder87

i understand all that, all im sayin is if its stoich, then it should read stoich on the gauge, instead of jumping from lean to stoich until WOT, which is why i said its inaccurate.

as for a need for the gauge, it does keep me awake during those long late night highway trips, and the bitches love the lightshow.

tazeat

It's not inaccurate you just must not understand how closed loop works.

axegrinder87

perhaps not. im no expert for sure.
i got mine for free as well, and installed it so i could have some heads up in case anything fuel related were to go bad.
i totally agree with ya, theyre pretty useless, but i fancy carbon fiber enough to not remove it.
i am interested in learning more about closed loop, if you dont mind explaining it a bit more through a pm id be very grateful.


so OP did you get it working?

tazeat

Closed loop is the ECUs method of trying to stay as close to stoich as possible. Because it only has a narrrowband that tells it two things, RICH (<14.7:1) or LEAN (>14.7:1) so when you are LEAN it adds fuel trying get closer to stoich, once it changes to RICH it leans out the fuel until the o2 reports you are LEAN again thus oscillating in a never ending cycle. Under WOT it goes back to open loop and just uses the map. That's it in an nutshell.

Jdm690

Yes im trying too install a tech n air fuel guage in a 92 Honda civic

speedjunkie_g35

Would you like a cookie?

What's was the point of that post other than trying to jack op's thread?

apexi_rsx

WHITE wire is the signal wire ... that gauge is junk and not to be used as a form of tuning on a narrowband sensor. that gauge is nothing but a light show nothing else