What numbers are normal for a wideband? 

This answered a lot for me, I thought my gauge was wrong but it’s right on the money, it’s doing exactly what your gauge says, if I could give you 100 likes for this I would

Thanks for sharing your knowledge brother! IT HELPED ME OUT! 👍🏼👍🏼

Thanks for your videos Danny

Good stuff man thanks

Good video man, helped me a lot

I consider my AFR gauge and vacuum gauge to be very important and informative (yes oil/temp/amps/volts/tach are important) I have a mild built ford 302/gt40 setup in my 1984 Datsun 200sx

Thanks ALOT. SO Helpful. Explained SO Well. 👍🏻

Very good video bro. Answered a lot of questions in under 5 mins. Fn Awesome. Time well spent.

I'm now looking around for why my AFR reads top lean on idle. I guess there isn't enough exhaust flow, being a 4 cylinder engine running at around 700/800 rpm at idle.

Vid got cut off,ill add one of these gauges in the future when i get my triple gauge pod :)

Thx for the info...

whats the range for perfect AFR? between 12.7-16.7 right? But 18 is not too lean?

Perhaps you can make a video what is the air to fuel ratio average to achieve fuel economy between 5L to 8L per 100km.. I am looking for this real fact for years.

Hey, question for you. Recently bought a turbo car that is tuned on 93 octane. Drove from Washington to Kansas City, and was not able to find 93 octane all the time, so I had to mix 91/93 octane, filling up whenever I needed to. Last fill up was 91 octane, and I did put the royal purple octane booster. I have not tried wide open throttle since I've filled up just in case, and when I drive normally after car warms up at such, afr gauge is usually 14 -15.5, and when I let go the accelerator, I see the gauge sometimes be at 17, or it would show ( - - - ). From what I understand from your video, it is normal for the gauge to read high when decelerating, but what about the 3 dashes? I plan to fill up on 93 octane whenever I use up all the fuel. Thanks in advance

Mine is running lean af. I've got a supercharger (only 2-3psi) and under mild to 70-80% throttle I'm reading 15, 16, and 17's. Nothing has happened so far but now that i can see the numbers I'm taking it easy. Getting it tuned asap 😅

what is the best one to buy just rebuild my engine 5.7 1990 k5 blazer i got edelbrock carb on there i already have headers so the hole is there for the 02 sensor i converted it from tbi to carb.

Badass gauge!

Thanks good video

informative

Reviving this video! Where did you find that SVT face for that gauge? I would love to have this same setup.

Hey Danny, I unplugged my MAF to test if it was causing my backfiring/missing. Now my car is driving around normally 11.5 to 12.5 a/f. It's obviously very rich now. Any ideas?

for standard NA engine 2000cc, whats the perfect range AFR? between 13.3-16.5? AFR should be constant during idle at 14.7 right?

Hi, I have a question and you definitely seem to know your shit. I recently picked up a car and it had one of these installed but the car is n/a my question is when I'm driving the car the ratio bounces all over the place but gets really lean at idle. Is this typical for a naturally aspirated engine or could there be something wrong? By lean i mean that it gets up to 17 and then the gauge just goes blank with three lines like it's getting so lean that the gauge won't even read it anymore. It only gets that lean at idle though and most of the time only for a couple of seconds.

what would it mean when a there’s no accurate number? mine reads super lean and rich sometimes it’ll be at 14.7 at idle for a few seconds and then jumps around becoming too lean and too rich

Low mile cobra awesome

good vid

Mine idles around 14.7 ish and full throttle barley hits the 11.8 to 12 but majority of time time it’s 13 range? Would this signify anything ?

Is that speedhut air fuel gauge or arm with the logo on it

if you're just idling or cruising, is it okay if the readings are all over the place? I understand that if you let of the gas it will lean out, but what if it leans out while driving or letting the car warm up?

Hey Danny I have a 2.0 Tfsi remaped Octavia Rs . I have 10,6-10,9 AFR at Full gas and 1.2 bar boost. Its Ok? Thanks :)

Hey man I have a 2.4L I4 Accord just I have high flow air filter but without tune . I have 10.3 to 10.1 AFR at full throttle. Is it ok? Thanks

Mine reads 12-13 during start up for about 5-10 seconds then goes back to 14-15 afr is this normal ?

Quite the abrupt ending

The chemically correct AFR for gasoline is 14.7(air) to 1(fuel), That's by mass - air is obviously compressible so you can't compare volume. Numbers above 14.7 mean the engine if running lean, meaning there's excess oxygen that can literally burn exhaust valves & pistons. combustion will also be faster & hotter, which can cause preignition. Numbers lower than 14,7 means there's excess fuel. You'll get some cooling effect by the fuel evaporating but what you're mostly doing is wasting fuel and producing more pollution.

I got a 2004 dodge neon srt4 mine stays at like 14 and when I open it up it stays 14 and 15 any ideas is it sposed to be like that idk

where can i get the svt AF guage? Is it an overlay or?

How does having a exhaust leak on the passenger side affect the wide band I’m reading 14.6 14.4 almost all the time on a supercharged car

It takes my wideband about 20 seconds to warm up, even after I restart the car after its been running. Is this normal?

That's crazy lien you should be at 13:5 when I let off my throttle and only jumps to 14:5

Mine goes into the 20s when it engine brakes is that a bad sensor

Can you still buy this particular gauge ?? Can’t find them anywhere

SVT LIGHTNING LIGHTNING LIGHTNING

Doesn't a scan tool provide this info thru fuel trim data?

So if my car hits 18 to about 20 for quick second then goes back to about 13 I shouldn't be worried on a NA motor

Wideband readings in volts? Not afr

WOT I go down to 10.2 is that bad? It’s usually 11.5 tho .

Its so annoying they dont sell this gauge anymore...

hi i have and subaru impreza wrx 2004 and at maximum trotle i read 11,50 /11,70 ist this good?

What about at idle on an na car

This is only for 93 and not e-85 or ms109 of course.

Briefly is 14.7:1 on gas.. Meaning: 14.7 parts of oxygen/air 1 part of gas These figures can change depending the type of fuel.. Alcohol needs way less air to burn than regular gas..

Is 10.6 or11.5 at idle any good turbo car

I know this is old, but do you remember what you paid for this new?