How To: Air/Fuel Ratio Gauge Install

[igdrasil]

If i plan on getting a turbo, would it be a problem if I installed this gauge before the turbo? You just plug the sensor into the new bung, right? I wouldnt have to run it all over again right?

Terry said it would be a problem with heat shortening the life of the O2 sensor, plus, when they are overheated, they will give innacurate readings.
I already tested this when I was N/A. Plugged the New O2 sensor in the manifold and it overheats @ high loads, 4th or 5th gear.

 

[Steve89GTA]

igdrasil
If you're running lean at wot under boost - you're going to fry your motor. Leaning the mixture up top helps with power output but will lead to fried pistons as a lean mixture up top also increases temperatures in the combustion chamber - which lead to cracked heads, etc.

I'd recheck your fuel delivery setup and ensure that you're getting the correct pressure at WOT.

 

[DaKidd]

I had my guages installed yesterday. the a/f guage didnt work, so I checked it once I got home. the installer hooked it up to the wrong wire (the orange one). so I took it back to him today and had him put it on the blue/pink wire. it then worked fine for about 1/2 an hour then just went out again... well not completely out, it just reads in the lowest lean digit at WOT, then goes blank at all other times... what happend here? did he fry the guage or the o2 sensor? did it over heat the sensor??? I dunno... need some help here!

 

[LinuxRacr]

I remember my Autometer A/F gauge used to flake out on me all the time like that. I dunno.

 

[LinuxRacr]

My Autometer A/F gauge used to flake out like that all the time. I dunno what's up. Probably a bad ground contact or something.

 

[BLUESTREAK]

hey linux empty ur pm box... heres what i tryed sending you




k need ur help here bud... i am buying an fs-ze and i want to drop it in my 2000 protege ( sick of losing races)... so anyway.. what did u do.... like did u use ur stock ecu or get urs reprogrammed... and what type of gains did u recieve... did u dyno the car, race on the 1/4 mile track , and so forth.... any tips i should know? by the way i am getting it for 1000 plus shipping canadian.. so its an offer i am not refusing

 

[dominoy2k1]

i think you need the ecu also to get the hp, without it, it is worthless from what i remember....i could be wrong though...

 

[jcywong]

sorry may i ask what is the point in installing the air/fuel ratio guage? is that we can adjust the air/fuel ratio setting??

 

[02.5 P5]

does the 12v source need to be a constant source, or can you hook it up to just come on with the parking lights? in other words, does the guage need power all the time to work?

 

[dominoy2k1]

all the time when the car is on, yeah.

 

[02.5 P5]

cool,thanks

 

[02.5 P5]

where should i tap in for the constant 12v?

 

[YellowMP5]

I had my guages installed yesterday. the a/f guage didnt work, so I checked it once I got home. the installer hooked it up to the wrong wire (the orange one). so I took it back to him today and had him put it on the blue/pink wire. it then worked fine for about 1/2 an hour then just went out again... well not completely out, it just reads in the lowest lean digit at WOT, then goes blank at all other times... what happend here? did he fry the guage or the o2 sensor? did it over heat the sensor??? I dunno... need some help here!

i connected my autometer gauge's violet wire to the orange one too. i contacted autometer and they said it should be connected to the white wire on the o3 sensor but after the connector. the connector connects orange wire and white wire together. the gauge read lean, all the way to the left and would rarely spike. but gauges signal wire should be connected to the pink/blue wire after the connector, right? damn autometer, i am going to sue them.:mad: sorry to bring the thread back from the grave. btw, i have 50k miles on my car, should i change my o2 sensor for a better/proper signal to the pcm?

 

[orng1]

where should i tap in for the constant 12v?

try the fuse box, it has 12v

 

[changedman]

finally figured it out. thanks to the genious (SERIOUS! ) who said it was wrapped up in grey sleeve. WERD.

 

[LapisBlueProteg]

ok maybe just me but i hooked it up to pink and blue wire!
the digi jumps back and forth like mad!
autometer pro comp series!
any ideas or is this normal drives me nuts and is the autometer supposed to have a backlight?

 

[LinuxRacr]

What do you mean?

 

[benbike]

ok maybe just me but i hooked it up to pink and blue wire!
the digi jumps back and forth like mad!
autometer pro comp series!
any ideas or is this normal drives me nuts and is the autometer supposed to have a backlight?

Yes it's normal and there's no backlight on the Autometer A/F gauge

 

[LinuxRacr]

If you are talking about how the gauge scans back and forth, then yes that is normal. The ECU is constantly adjusting the A/F ratio back and forth around 14.7.

 

[LapisBlueProteg]

got it some times it stays in 1 spot! odd gauge!