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View Full Version : AIR/FUEL RATIO GAUGE



cremeans2326
06-27-2004, 08:48 PM
I have the AutoMeter CF gauge, I hooked it up on one of the injector pins on the ECU, not looking at it right now to know which number for sure, but I don't get very accurate readings, I don't think anyway. When I'm idleing, it seems ok, but if I rev the engine it doesn't move, and when I'm at WOT it just goes to rich. I've got a SAFC and I wanted to see if I was running rich or lean. But it doesn't really do me any good if it just goes to green as soon as I punch the gas. Any help's good. Thanks

VA_LANCER_RACER
06-27-2004, 09:53 PM
maybe you have the wrong pin, the light should bounce back and forth until you reach wot

peanotation
06-27-2004, 10:45 PM
it's always 100% green for me when i floor it, this is normal

galantv600
06-28-2004, 12:28 AM
i got the ac revolution gauge to match my el reverse.. well it goes back and forth all the ime... when i flloor it.. goes to the right to rich... other than flooring itll go back and forth.. i call it my horny gauge https://www.thegalantcenter.org/style_emoticons/default/laugh.gif

BlankMan
06-28-2004, 07:46 AM
...I hooked it up on one of the injector pins on the ECU...

Hope you mean the o2 pin and not injector. If so, find out which pin you have it connected to for better help diagnosing the problem...

J

HeadAche
06-28-2004, 12:57 PM
IF you have a I-4 its pin 71 on the 3rd harness, its the top left pin and the wire is white.. When im at WOT my car does not run rich at all, its stay 1 bar right of it being in the middle.

b-boy_sky
06-28-2004, 02:07 PM
If you have an AFC you need to get it dyno tuned, then you will know if you are running rich or lean. The air/fuel gauge will only give you an ok reading (not good enough for tuning). If you don't want to get it dyno tuned then you will need a wide band o2 sensor (about $400). I have a link to a good wide band sensor if you want it....

manybrews
06-28-2004, 04:35 PM
I have the AutoMeter CF gauge, I hooked it up on one of the injector pins on the ECU, not looking at it right now to know which number for sure, but I don't get very accurate readings, I don't think anyway. When I'm idleing, it seems ok, but if I rev the engine it doesn't move, and when I'm at WOT it just goes to rich. I've got a SAFC and I wanted to see if I was running rich or lean. But it doesn't really do me any good if it just goes to green as soon as I punch the gas. Any help's good. Thanksits suppost to bounce back and forth many times a second under normal cruise, and warm idle.
at WOT, the car goes rich, so the gauge should read as such.

06-28-2004, 04:39 PM
its suppost to bounce back and forth many times a second under normal cruise, and warm idle.
at WOT, the car goes rich, so the gauge should read as such.
Daaaaayum....the quintuple post!

2000GTZ
06-29-2004, 02:27 AM
does it add to your post count? :twisted:

HeadAche
06-30-2004, 12:56 AM
hell yeah, it adds to his post.. lol.. damn i have never seen that...

Mante
06-30-2004, 09:14 PM
<div class='quotetop'>QUOTE(scootinintegra)</div><div class='quotemain'>
Daaaaayum....the quintuple post!</div>

Problem corrected

paco
07-08-2004, 04:56 PM
can you tap off the withe wire from the 02 sensor or does it have to be from the ECU pin 71?

pinoyesv6
07-08-2004, 05:06 PM
you get a better reading if its closer to the ecu.

paco
07-08-2004, 05:21 PM
cool man, thanks!

PS but it is the white wire right?