A/F meters? are they really any good?
08-07-2002 | 09:27 AM
#51
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 3
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Originally posted by LilJayV10
ok question, if an a/f gauge is inaccurate because all it does is switch from lean/rich, why do they use them for emmisions purposes if they are that innacurate, and why dont all vehicle manufacturs use WB O2?
is it because the a/f gauge is measuring one thing, and an O2 sensor for emmisions is measuring a different one? But isnt efficency efficency? This might have already been answered but I might have missed it. I apperciate all the replys.
ok question, if an a/f gauge is inaccurate because all it does is switch from lean/rich, why do they use them for emmisions purposes if they are that innacurate, and why dont all vehicle manufacturs use WB O2?
is it because the a/f gauge is measuring one thing, and an O2 sensor for emmisions is measuring a different one? But isnt efficency efficency? This might have already been answered but I might have missed it. I apperciate all the replys. As for WB O2 sensors, Honda is using one on it's low emissions vehicle and probably more will in the future. While we use a WB O2 sensor for accurate A/F ratios in the 11-13.5:1 range, a WB also provides accurate A/F ratios in the "super lean" area like 16-18:1.
But, as to why they were not used earlier on our cars, the answer is simple. Cost.
08-07-2002 | 01:23 PM
#52
Thread Starter
Supreme Member
iTrader: (5)
Joined: Jan 2001
Posts: 2,025
Likes: 1
From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
Originally posted by Glenn91L98GTA
They don't use an O2 sensor, they use a gas spectrometer. O2 sensor on ly measures O2. Gas spectometer measures a variety of gases (depending on it's setup), that is why they measure your HC, CO and NOx.
They don't use an O2 sensor, they use a gas spectrometer. O2 sensor on ly measures O2. Gas spectometer measures a variety of gases (depending on it's setup), that is why they measure your HC, CO and NOx.
08-07-2002 | 02:44 PM
#53
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 3
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Originally posted by LilJayV10
Since when they dont use and o2 sensor?
Since when they dont use and o2 sensor?
08-07-2002 | 04:04 PM
#54
Member
iTrader: (1)
Joined: Oct 1999
Posts: 337
Likes: 0
From: Ohio
Car: 1991 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73
http://www.diy-wb.com/
This link does not work. Is it spelled right? Did they move the webpage?
This link does not work. Is it spelled right? Did they move the webpage?
08-07-2002 | 05:03 PM
#55
Supreme Member
Joined: Apr 2000
Posts: 1,154
Likes: 0
From: Stillwater, OK
Car: 1991 Formula
Engine: 355 DFI Superram w/ R-Trim
Transmission: Probuilt 700r4
I have heard that when the guage bounces back and forth between extreme rich and extreme lean that you are near 14.7 as accurately measurable by a factory o2 sensor and guage. Is correct?
08-07-2002 | 08:09 PM
#56
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 3
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Originally posted by Homer
http://www.diy-wb.com/
This link does not work. Is it spelled right? Did they move the webpage?
http://www.diy-wb.com/
This link does not work. Is it spelled right? Did they move the webpage?
Thread
Thread Starter
Forum
Replies
Last Post
db057
TBI
10
08-11-2015 10:11 PM
