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JDMSpecAccordSir-T · 06-13-2003, 05:36 PM

I have an arguement going with some of my friends. They say if you have a EGT meter then you don't neccesarily need a A/F meter. I say the A/F meter is more accurate. What do you guys say?

pissedoffsol · 06-13-2003, 10:55 PM

a/f gauge is 99% worthless without a wideband o2 sensor.
EGT is a must in my opinion

JDMSpecAccordSir-T · 06-15-2003, 01:24 AM

Thats the first time ive heard of a wide band 02 sensor. What is it exactly (im thinking 2 bar map sensor

)?

With it, would the A/F meter be better than a EGT meter (tuning wise)?

And I dont mean to rant on you (rather im going to make a point) but would please explain why you have come to that conclusion rather than just stating your opinion because most people (and me) prefer facts over opinions. This seems to have become the norm around here nowadays ( I've seen quite a few people complain about that).

To think, I thought this was supposed to be a place where I actually learned something

.
JK

hondaguy72 · 06-18-2003, 12:07 PM

To answer the question, a wideband O2 is different than the factory O2 sensor in that it can read voltages which span the entire range of rich to lean. The factory or aftermarket type O2 sensors can only send a very narrow band of voltages to the meter. On the other hand, a temp sensor (EGT) can read all temperatures. The only problem with an egt sensor is that you need to interpret the data. High exhaust temps could be caused by either a lean condition, or fuel igniting in the exhaust path. The ideal tuning tool IMO is a wideband lambda meter (O2).

knowledge · 06-18-2003, 08:51 PM

http://www.ks-motorsports.com/index.php?pa...33e9b32f7f93651

pissedoffsol · 06-19-2003, 02:11 AM

ive heard that aem shit only works well with the aem ems... nothign else.

anyway, as far as wideband- its like this

as you can see, the narrow band (or normal) o2 gets about the same reading... from rich, to stoich, to lean.... its all withing .0x voltages, and something that simply can't be read accurately with a device.

the wideband uses a wider voltage span, to show lean, stoich, and rich conditions based on a voltage- how 99% of other sensors work.

06-18-2003, 08:51 PM	#5
knowledge Senior Member Join Date: Sep 2002 Location: Beale AFB, CA Posts: 1,410 iTrader: 0 / 0% Rep Power: 29	http://www.ks-motorsports.com/index.php?pa...33e9b32f7f93651 __________________ The C5 is strong with this one........

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06-13-2003, 05:36 PM	#1
JDMSpecAccordSir-T Member Join Date: Apr 2003 Posts: 87 iTrader: 0 / 0% Rep Power: 14	I have an arguement going with some of my friends. They say if you have a EGT meter then you don't neccesarily need a A/F meter. I say the A/F meter is more accurate. What do you guys say?

06-13-2003, 10:55 PM	#2
pissedoffsol RETIRED Join Date: Sep 2002 Location: Retirement Home Age: 29 Posts: 49,951 iTrader: 2 / 100% Ride: Electric Scooter Blog Entries: 1 Rep Power: 531	a/f gauge is 99% worthless without a wideband o2 sensor. EGT is a must in my opinion

06-15-2003, 01:24 AM	#3
JDMSpecAccordSir-T Member Join Date: Apr 2003 Posts: 87 iTrader: 0 / 0% Rep Power: 14	Thats the first time ive heard of a wide band 02 sensor. What is it exactly (im thinking 2 bar map sensor )? With it, would the A/F meter be better than a EGT meter (tuning wise)? And I dont mean to rant on you (rather im going to make a point) but would please explain why you have come to that conclusion rather than just stating your opinion because most people (and me) prefer facts over opinions. This seems to have become the norm around here nowadays ( I've seen quite a few people complain about that). To think, I thought this was supposed to be a place where I actually learned something . JK

06-18-2003, 12:07 PM	#4
hondaguy72 Member Join Date: Mar 2003 Posts: 45 iTrader: 0 / 0% Rep Power: 14	To answer the question, a wideband O2 is different than the factory O2 sensor in that it can read voltages which span the entire range of rich to lean. The factory or aftermarket type O2 sensors can only send a very narrow band of voltages to the meter. On the other hand, a temp sensor (EGT) can read all temperatures. The only problem with an egt sensor is that you need to interpret the data. High exhaust temps could be caused by either a lean condition, or fuel igniting in the exhaust path. The ideal tuning tool IMO is a wideband lambda meter (O2).

06-19-2003, 02:11 AM	#6
pissedoffsol RETIRED Join Date: Sep 2002 Location: Retirement Home Age: 29 Posts: 49,951 iTrader: 2 / 100% Ride: Electric Scooter Blog Entries: 1 Rep Power: 531	ive heard that aem shit only works well with the aem ems... nothign else. anyway, as far as wideband- its like this as you can see, the narrow band (or normal) o2 gets about the same reading... from rich, to stoich, to lean.... its all withing .0x voltages, and something that simply can't be read accurately with a device. the wideband uses a wider voltage span, to show lean, stoich, and rich conditions based on a voltage- how 99% of other sensors work.

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Air/fuel Meter Vs Egt Meter