any one know how those Air Fuel gauges work - The 1947 - Present Chevrolet & GMC Truck Message Board Network

strokenit · 03-23-2004, 04:19 PM

I am loking at buying one of those Air Fuel gauges dose any one no how they work ? or do thay work for tuning your carb????

jku72 · 03-23-2004, 05:04 PM

It uses an oxygen sensor in the exhaust system, to measure air/fuel ratio, I believe. It should be a valuable tool to optimize a carburator for peak efficiency.

strokenit · 03-23-2004, 05:23 PM

do you now if I just bought a oxigen sencer and put it in my exast if it woud work? or am i goting to have to do some wiring if so how woud I do it?
thanks Ben

jku72 · 03-23-2004, 05:25 PM

When you buy the guage, it should come with all needed parts, and instructions.

*Tanker350* · 03-23-2004, 07:19 PM

No, once you buy the air/fuel gauge, youi'll have to buy Autometer part #2244 which comesd with the O2 sensor, wiring harness, a thing to weld to your exhaust collector, and instrtuctions. I don't know about buying just a O2 sensor. I have the ultra Lite air/fuel gauge, and havent put it in yet b/c I don't want to take the easy way out.

neonlarry · 03-23-2004, 08:10 PM

Most of those A/F ratio gauges aren't very useful for tuning. What you need is a wide band AFR. Only trouble is they are more expensive mostly because the wideband O2 sensors are expensive. If you do use a WB tune you truck then pull the sensor they are too expensive to leave in all the time.
If its just for looks go ahead and get one of the less expensive ones with the switching type O2 sensor.

flip66 · 03-23-2004, 10:35 PM

tanker350 is correct about installation. I had one on a 88 Monte Carlo SS with a 350 and about all it was good for was to tell you if you were lean or rich at WOT. not much good for anything else

03-23-2004, 04:19 PM	#1
strokenit Registered User Join Date: Mar 2004 Location: WI Glenwood city Posts: 52	any one know how those Air Fuel gauges work I am loking at buying one of those Air Fuel gauges dose any one no how they work ? or do thay work for tuning your carb????

03-23-2004, 05:25 PM	#4
jku72 Registered User Join Date: Jan 2002 Location: cornville, maine Posts: 659	When you buy the guage, it should come with all needed parts, and instructions. __________________ jku Cornville, Maine 68 C10 burb 42 Willys MB 46 Dodge WF-32 1.5 ton 53 & 56 Olds' 60 Cadillac 22 Dodge Brothers

03-23-2004, 08:10 PM	#6
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Most of those A/F ratio gauges aren't very useful for tuning. What you need is a wide band AFR. Only trouble is they are more expensive mostly because the wideband O2 sensors are expensive. If you do use a WB tune you truck then pull the sensor they are too expensive to leave in all the time. If its just for looks go ahead and get one of the less expensive ones with the switching type O2 sensor. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

03-23-2004, 05:04 PM	#2
jku72 Registered User Join Date: Jan 2002 Location: cornville, maine Posts: 659	It uses an oxygen sensor in the exhaust system, to measure air/fuel ratio, I believe. It should be a valuable tool to optimize a carburator for peak efficiency. __________________ jku Cornville, Maine 68 C10 burb 42 Willys MB 46 Dodge WF-32 1.5 ton 53 & 56 Olds' 60 Cadillac 22 Dodge Brothers

03-23-2004, 05:23 PM	#3
strokenit Registered User Join Date: Mar 2004 Location: WI Glenwood city Posts: 52	do you now if I just bought a oxigen sencer and put it in my exast if it woud work? or am i goting to have to do some wiring if so how woud I do it? thanks Ben

03-23-2004, 07:19 PM	#5
Tanker350 Account Suspended Join Date: Dec 2003 Location: Palm Desert, Ca Posts: 410	No, once you buy the air/fuel gauge, youi'll have to buy Autometer part #2244 which comesd with the O2 sensor, wiring harness, a thing to weld to your exhaust collector, and instrtuctions. I don't know about buying just a O2 sensor. I have the ultra Lite air/fuel gauge, and havent put it in yet b/c I don't want to take the easy way out.

03-23-2004, 10:35 PM	#7
flip66 Registered User Join Date: Jan 2004 Location: Garland TX Dallas area Posts: 658	tanker350 is correct about installation. I had one on a 88 Monte Carlo SS with a 350 and about all it was good for was to tell you if you were lean or rich at WOT. not much good for anything else



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