air fuel ratio gauge question

jasons_98gt · July 6th, 2008, 06:27 PM

hey all hooked up an a/f gauge to my car today and its just staying lit in the rich position even after i took the car and drove it on the interstate it didnt move at all well the question is does it matter which o2 sensor its hooked to? i wired it in the front o2 sensor on the drivers side or maybe my car is just running rich lol...i dont get carbon or anything but the exhaust is a lil teary eyes sometimes thanks

HMUSN · July 6th, 2008, 06:34 PM

O/R exhaust?

and you really should invest in a wide band instead of the narrow band you have.

jasons_98gt · July 6th, 2008, 06:58 PM

yea its saying the exhaust is rich but im not getting black smoke or anything

HMUSN · July 6th, 2008, 07:02 PM

I'm asking if you have Off Road Exhaust.

jasons_98gt · July 6th, 2008, 07:07 PM

oh sorry...no i have the stock exhaust

HMUSN · July 6th, 2008, 07:09 PM

exhaust doesn't get rich. an engine's a/f mixture is what gets rich/lean.
to be honest with you the narrow band sensor you have is a pos and nothing but a fancy light show. as far as your running rich issue run a can of seafoam through it and see if that clears it up.

jasons_98gt · July 6th, 2008, 07:12 PM

yea i ran seafoam through it friday when i took a trip for the weekend went about 200 miles back and forth im guessing it might just be time for some new 02 sensors? after all they are original and have almost 150k on them

HMUSN · July 6th, 2008, 07:13 PM

change em out. can't hurt.

( get a wide band) <-- listen

it's a MUST

jasons_98gt · July 6th, 2008, 07:15 PM

lol i was lookin at wideband ones they are a lil to expensive for my liking especially since im trying to save for a p.i upgrade but thanks alot man

HMUSN · July 6th, 2008, 07:17 PM

ok. just so you know man.. wide band > narrow band.

a narrow band can't read properly when you go wide open throttle so if you plan on modding your car more please invest in one for your own good.

jasons_98gt · July 6th, 2008, 08:56 PM

im just wondering if i hooked it up to the wrong o2 wire lol cause when i turn the key to the run position engine not running the rich light is already on?? i tapped into the red wire does this help any

jasons_98gt · July 6th, 2008, 09:01 PM

any help hm?

HMUSN · July 6th, 2008, 09:07 PM

you mean your coolant light I assume.
check your coolant level.

jasons_98gt · July 6th, 2008, 09:12 PM

no not the coolant light i have a haynes book and got the info out of that for the signal wire so i looked at the connector and on the driver side the red wire was supposedly the signal wire so i tapped into that.....as i was just looking at the directions it said there shouldnt be anything lit with the key in run position and motor off well the rich light is on with k/on engine off

HMUSN · July 6th, 2008, 09:13 PM

you don't have a "running rich light" got a pic?

jasons_98gt · July 6th, 2008, 09:16 PM

i mean the rich light on the gauge is on before the engine is started no pics sorry just installed it today

HMUSN · July 6th, 2008, 09:17 PM

well of course it is.

the gauge isn't reading anything

jasons_98gt · July 6th, 2008, 09:18 PM

yea so does that mean i hooked it to the wrong o2 wire?

HMUSN · July 6th, 2008, 09:19 PM

no. it means your cars not started so the gauge isn't reading anything.

jasons_98gt · July 6th, 2008, 09:22 PM

right right haha i feel like a horses ass but according to the instructions no light should be on the gauge with the motor off

July 6th, 2008, 06:27 PM	#1
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	air fuel ratio gauge question hey all hooked up an a/f gauge to my car today and its just staying lit in the rich position even after i took the car and drove it on the interstate it didnt move at all well the question is does it matter which o2 sensor its hooked to? i wired it in the front o2 sensor on the drivers side or maybe my car is just running rich lol...i dont get carbon or anything but the exhaust is a lil teary eyes sometimes thanks

July 6th, 2008, 06:34 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	O/R exhaust? and you really should invest in a wide band instead of the narrow band you have. __________________

July 6th, 2008, 07:02 PM	#4
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	I'm asking if you have Off Road Exhaust. __________________

July 6th, 2008, 07:09 PM	#6
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	exhaust doesn't get rich. an engine's a/f mixture is what gets rich/lean. to be honest with you the narrow band sensor you have is a pos and nothing but a fancy light show. as far as your running rich issue run a can of seafoam through it and see if that clears it up. __________________

July 6th, 2008, 07:13 PM	#8
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	change em out. can't hurt. ( get a wide band) <-- listen it's a MUST __________________

July 6th, 2008, 06:58 PM	#3
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	yea its saying the exhaust is rich but im not getting black smoke or anything

July 6th, 2008, 07:07 PM	#5
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	oh sorry...no i have the stock exhaust

July 6th, 2008, 07:12 PM	#7
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	yea i ran seafoam through it friday when i took a trip for the weekend went about 200 miles back and forth im guessing it might just be time for some new 02 sensors? after all they are original and have almost 150k on them

July 6th, 2008, 07:15 PM	#9
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	lol i was lookin at wideband ones they are a lil to expensive for my liking especially since im trying to save for a p.i upgrade but thanks alot man

July 6th, 2008, 07:17 PM	#10
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	ok. just so you know man.. wide band > narrow band. a narrow band can't read properly when you go wide open throttle so if you plan on modding your car more please invest in one for your own good. __________________

July 6th, 2008, 08:56 PM	#11
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	im just wondering if i hooked it up to the wrong o2 wire lol cause when i turn the key to the run position engine not running the rich light is already on?? i tapped into the red wire does this help any

July 6th, 2008, 09:01 PM	#12
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	any help hm?

July 6th, 2008, 09:07 PM	#13
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	you mean your coolant light I assume. check your coolant level. __________________

July 6th, 2008, 09:12 PM	#14
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	no not the coolant light i have a haynes book and got the info out of that for the signal wire so i looked at the connector and on the driver side the red wire was supposedly the signal wire so i tapped into that.....as i was just looking at the directions it said there shouldnt be anything lit with the key in run position and motor off well the rich light is on with k/on engine off

July 6th, 2008, 09:13 PM	#15
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	you don't have a "running rich light" got a pic? __________________

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July 6th, 2008, 09:16 PM	#16
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	i mean the rich light on the gauge is on before the engine is started no pics sorry just installed it today

July 6th, 2008, 09:17 PM	#17
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	well of course it is. the gauge isn't reading anything __________________

July 6th, 2008, 09:18 PM	#18
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	yea so does that mean i hooked it to the wrong o2 wire?

July 6th, 2008, 09:19 PM	#19
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	no. it means your cars not started so the gauge isn't reading anything. __________________

July 6th, 2008, 09:22 PM	#20
jasons_98gt Enthusiast 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 834 iTrader: 0 reviews	right right haha i feel like a horses ass but according to the instructions no light should be on the gauge with the motor off

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