air/fuel ratio gauge?

crzyhrse99 · Apr 11, 2005

i have been looking at getting an air/fuel ratio to go in my a-pillar pod, reason being i would like to have a better idea if i am running rich or lean with the predator installed. anyone have one of these or know how and what they are wired to.....also are they accurate? thanks in advance

98stangv8 · Apr 11, 2005

crzyhrse99 said:
i have been looking at getting an air/fuel ratio to go in my a-pillar pod, reason being i would like to have a better idea if i am running rich or lean with the predator installed. anyone have one of these or know how and what they are wired to.....also are they accurate? thanks in advance

good question...I would like to know too...

Mike97gt · Apr 11, 2005

crzyhrse99 said:
i have been looking at getting an air/fuel ratio to go in my a-pillar pod, reason being i would like to have a better idea if i am running rich or lean with the predator installed. anyone have one of these or know how and what they are wired to.....also are they accurate? thanks in advance

they are only accurate if you have wideband o2 sensors..

non-widebands are only accurate near stochiometric (sp.) 14.7.1 ratio.. this is the best ratio for emmisions and economy at part throttle.. at wide open throttle the ratio is not at 14.7.1 more in the 13.1 range and the sensor is not accurate at all for that.. thats why the PCM ignores the o2 sensors are WOT and goes open loop...

White Stang · Apr 11, 2005

It ties in with 3 wires negative, positive, and control wire to oxygen sensor. You can trace the oxygen sensor back to the main engine wiring harness plug and tie it in there. Go ahead and get a haynes service book it will give you all the wiring color codes and make your life easier

99greenstang · Apr 11, 2005

crzyhrse99 said:
i have been looking at getting an air/fuel ratio to go in my a-pillar pod, reason being i would like to have a better idea if i am running rich or lean with the predator installed. anyone have one of these or know how and what they are wired to.....also are they accurate? thanks in advance

Basically, you will have a light show in your car. they are only worthwhile (as stated above), if you have a wideband sensor in your car. It'll look great for chicks tho, they love light shows (hehe neon punch)

98stangv8 · Apr 11, 2005

99greenstang said:
Basically, you will have a light show in your car. they are only worthwhile (as stated above), if you have a wideband sensor in your car. It'll look great for chicks tho, they love light shows (hehe neon punch)

could you tell me about this wideband sensor? what is it, do you just replace your regular o2 sensors with it? where do you get them?

White Stang · Apr 11, 2005

The wideband A/F runs around $450 to 500. Just get a tune. I like my A/F light show Why would I install the more accurate plain jane Wide band gauge and take out my nite rider gauge that is just mad talk

97gtblue · Apr 11, 2005

i bought a autometer phantom a/f gauge it's not reading accurate someone told me they arent very accurate but im not sure.. mine doesnt even work right any more.. i dont think. what should it do exactly should the lights blink back and fourth or stay still

Mike97gt · Apr 11, 2005

97gtblue said:
i bought a autometer phantom a/f gauge it's not reading accurate someone told me they arent very accurate but im not sure.. mine doesnt even work right any more.. i dont think. what should it do exactly should the lights blink back and fourth or stay still

as i stated above you need widebands for the gauge too be accurate.. and they are pricey...

White Stang said:
Why would I install the more accurate plain jane Wide band gauge and take out my nite rider gauge that is just mad talk

White Stang · Apr 11, 2005

97gtblue said:
i bought a autometer phantom a/f gauge it's not reading accurate someone told me they arent very accurate but im not sure.. mine doesnt even work right any more.. i dont think. what should it do exactly should the lights blink back and fourth or stay still

When you get on it WOT it will go to the green side when you are not it will go back and fourth from red to green depending on Air fuel readings.

98stangv8 · Apr 11, 2005

what are the widebands??

97gtblue · Apr 11, 2005

i think my gauge is broke. i just sits on red.. i check my wires and they are good. it used to go back and fourth at idle now it sits on red and then disappears for a minute. i think its about time to get it out

mr. jones1 · Apr 12, 2005

your oxygen sensor could be broken-indicating a lean condition.

As for the quality/usefulness of the non-wide band gauges I see it like this.
If your ratio is on you can check the gauge now and they and observe the pattern that it indicates. If the pattern changes or stops alltogether you know something is wrong (not that it only reads one side). If you need a gauge to monitor you a/f ratio for tuning after mods you want the wide band $400 setup.
I have a non w/b installed after my tune it swings constantly.
Yes power and ground and you can find left o2 sensor wire (red on a 1998) up by the battery in a wiring harness. You need to identify your wire color and follow the route from the o2 sensor to confirm that its the same. The gauge will probably also have a wire for back lighting. connect that to dask light wire.

Mike97gt · Apr 12, 2005

98stangv8 said:
what are the widebands??

wideband o2's are oxegen sensors that are acurate over a broad spectrum.. where the stock o2's on any car are only accurate around stochiometric 14.7.1 and are very inaccurate at WOT where the air fuel ratio is more in the 12.1-13.1 range...

98stangv8 · Apr 12, 2005

MikeZ28 said:
wideband o2's are oxegen sensors that are acurate over a broad spectrum.. where the stock o2's on any car are only accurate around stochiometric 14.7.1 and are very inaccurate at WOT where the air fuel ratio is more in the 12.1-13.1 range...

where can you pick them up? any ideas?

mr. jones1 · Apr 12, 2005

look at summit racing and jegs
both have sites good prices

romancer · Apr 12, 2005

would they at all benefit a near stock GT?

i thought they were only really needed in supercharged applications.

jstreet0204 · Apr 12, 2005

98stangv8 said:
where can you pick them up? any ideas?

http://www.plxdevices.com is where I got mine, and I highly recommend getting one if you plan on ever running anykind of power adder.

romancer · Apr 12, 2005

jstreet0204 said:
http://www.plxdevices.com is where I got mine, and I highly recommend getting one if you plan on ever running anykind of power adder.

now, or when the time comes when we get a power adder?

romancer · Apr 14, 2005

romancer said:
now, or when the time comes when we get a power adder?

bump...never got a response.

air/fuel ratio gauge?

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