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Wideband vs Air to fuel gauge

asite57

asite57

New member
can someone please explain to me the difference between a wideband an a AFR gauge besides the price why should i spend an extra $170 for a wideband?
 


but why they do the same thing all i need to know is if im running lean or rich to be more persice id just use my scanner ir a aeroforce
 
asite57 said:
but why they do the same thing all i need to know is if im running lean or rich to be more persice id just use my scanner ir a aeroforce
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There is a lot more too it than you just being lean or rich. You need a wideband to tune your maf properly and you cannot do it just by seeing if your car is lean or rich. Also you want a non intercooled car at an 11.5 afr at wot and an intercooled car at 12 afr. You would not be able to get exactly those numbers with you just seeing that it's either rich or lean.


Sent from my ADR6400L using Tapatalk 2
 
I have an AFR gauge in my 2000 and all I can tell from it is that my O2 sensor seems to have ADHD. Bounces around everywhere. Pretty useless even to see if you are running lean or rich, as it pretty much says both.
 


thenose said:
I have an AFR gauge in my 2000 and all I can tell from it is that my O2 sensor seems to have ADHD. Bounces around everywhere. Pretty useless even to see if you are running lean or rich, as it pretty much says both.
Click to expand...


A o2 sensor is suppose to bounce back and forth very quickly.
 
afallucco said:
There is a lot more too it than you just being lean or rich. You need a wideband to tune your maf properly and you cannot do it just by seeing if your car is lean or rich. Also you want a non intercooled car at an 11.5 afr at wot and an intercooled car at 12 afr. You would not be able to get exactly those numbers with you just seeing that it's either rich or lean.


Sent from my ADR6400L using Tapatalk 2
Click to expand...

Not that simple unless you have heads.

Our motors seem to like 10.7-11.3 AFR non intercooled, non cammed, and on the leaner end of that if you have rockers.
Cammed and or intercooled 11.3-11.7 AFR. Heads allow you to lean out a tad however.


Back on topic however, Stock Narrowband sensors have switch points when your car is running in closed loop. Run an open loop tune and you won't see the switching (ADHD)
 
to OP
an air fuel gauge will just read the narrow band.

the diff between narrow band and Wide band are that the Narrow is tuned to see if the exhaust is richer then 14.7 or leaner only. a wide band will tell you exactly your air fuel from 10-20
 


Stock Narrowband sensors have switch points when your car is running in closed loop. Run an open loop tune and you won't see the switching (ADHD)
Click to expand...

False.

A narrowband switches very rapidly around the 14.7 point, so a car running in open loop that is running at 14.7 afr, will still cause a wideband to cycle normally. It will not be very consistant but it will still bounce around quite a bit.
 
The correct answer is the things you are refering to are both Air/Fuel Ratio gauges.
One being a wideband, the other a narrowband.

You want a wideband.
 
Just keep in mind that $170 is just for the gauge, sensor and wiring. You will need to have the sensor installed in your exhaust, right past the down pipe.

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alright thanks for the advice im pretty sure im just gonna get a regular air to fuel gauge but i have a scan tool that can give me an exact number of my AFR
 
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